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^[0-9]*$n位的数字:^\d{n}$至少n位的数字:^\d{n,}$m-n位的数字:^\d{m,n}$零和非零开头的数字:^(0|[1-9][0-9]*)$非零开头的最多带两位小数的数字:^([1-9][0-9]*)+(.[0-9]{1,2})?$带1-2位小数的正数或负数:^(\-)?\d+(\.\d{1,2})?$正数、负数、和小数:^(\-|\+)?\d+(\.\d+)?$有两位小数的正实数:^[0-9]+(.[0-9]{2})?$有1~3位小数的正实数:^[0-9]+(.[0-9]{1,3})?$非零的正整数:^[1-9]\d*$ 或 ^([1-9][0-9]*){1,3}$ 或 ^\+?[1-9][0-9]*$非零的负整数:^\-[1-9][]0-9"*$ 或 ^-[1-9]\d*$
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非负整数<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding : 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;Wortumbruch: break-word !important;font-size: 16px;overflow-wrap: break-word !important; line-height: 25px;">^d+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^d+$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[1-9]d*|0$</span>^[1-9]d*|0$

🎜

非正整数: <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px ;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line- height: 25px;">^-[1-9]d*|0$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^-[1-9]d*|0$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^((-d+)|(0+))$</span> 或 

<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding : 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;Wortumbruch: break-word !important;font-size: 16px;overflow-wrap: break-word !important; Zeilenhöhe: 25px;">^((-d+)|(0+))$🎜</span>🎜

非负浮点数<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line -height: 25px;">^d+(.d+)?$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^d+(.d+)?$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[1-9]d*.d*|0.d*[1-9]d*|0?.0+|0$</span> 或 

<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px; Umriss: 0px;max-width: 100%;box-sizing: border-box !important;Wortumbruch: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height : 25px;">^[1-9]d*.d*|0.d*[1-9]d*|0?.0+|0$🎜</span>🎜

非正浮点数: <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line -height: 25px;">^((-d+(.d+)?)|(0+(.0+)?))$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^((-d+(.d+)?)|(0+(.0+)?))$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(-([1-9]d*.d*|0.d*[1-9]d*))|0?.0+|0$</span> 或 

<span mp-original-font-size="16" mp-original-line- height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size : 16px;overflow-wrap: break-word !important;line-height: 25px;">^(-([1-9]d*.d*|0.d*[1-9]d*))| 0?.0+|0$🎜</span>🎜

正浮点数: <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px ;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line- Höhe: 25px;">^[1-9]d*.d*|0.d*[1-9]d*$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[1-9]d*.d*|0.d*[1-9]d*$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(([0-9]+.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*.[0-9]+)|([0-9]*[1-9][0-9]*))$</span> 或 

<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(([0-9]+.[0-9]*[1-9][0-9]*)|( [0-9]*[1-9][0-9]*.[0-9]+)|([0-9]*[1-9][0-9]*))$🎜 Code>🎜<p mp-original-font-size="17" mp-original-line-height="27" style='margin: 0px 0px 1.2em !important;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;clear: both;min-height: 1em;caret-color: rgb(34, 34, 34);color: rgb(34, 34, 34);font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;font-style: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: 0.544px;text-indent: 0px;text-transform: none;white-space: normal;word-spacing: 0px;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;text-decoration: none;font-variant-ligatures: normal;orphans: 2;widows: 2;background-color: rgb(255, 255, 255);text-align: left;overflow-wrap: break-word !important;line-height: 27px;'><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;line-height: 25px;"><strong mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;font-size: 16px;line-height: 25px;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;font-size: 16px;line-height: 25px;">负浮点数</span></strong><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;font-size: 16px;line-height: 25px;">:</span></span><code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3 em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: einfarbig; Randfarbe: RGB (234, 234, 234); Hintergrundfarbe: RGB (248, 248, 248); Randradius: 3 Pixel; Anzeige: inline; Zeilenhöhe: 23 Pixel; Boxgröße: Rand box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px ;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line- height: 25px;">^-([1-9]d*.d*|0.d*[1-9]d*)$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^-([1-9]d*.d*|0.d*[1-9]d*)$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(-(([0-9]+.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*.[0-9]+)|([0-9]*[1-9][0-9]*)))$</span> 或 

<span mp-original-font-size="16" mp-original- line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font -size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(-(([0-9]+.[0-9]*[1-9][0-9 ]*)|([0-9]*[1-9][0-9]*.[0-9]+)|([0-9]*[1-9][0-9]*) ))$🎜</span>🎜

浮点数<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px; Umriss: 0px;max-width: 100%;box-sizing: border-box !important;Wortumbruch: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height : 25px;">^(-?d+)(.d+)?$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(-?d+)(.d+)?$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^-?([1-9]d*.d*|0.d*[1-9]d*|0?.0+|0)$</span> 或 

<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line -height: 25px;">^-?([1-9]d*.d*|0.d*[1-9]d*|0?.0+|0)$🎜</span>🎜

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

二、校验字符的表达式

汉字<span mp-original-font-size="16" mp-original-line-height="25 " style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow -wrap: break-word !important;line-height: 25px;">^[u4e00-u9fa5]{0,}$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[u4e00-u9fa5]{0,}$</span>

" em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: einfarbig; Randfarbe: RGB (234, 234, 234); Hintergrundfarbe: RGB (248, 248, 248); Randradius: 3 Pixel; Anzeige: inline; Zeilenhöhe: 23 Pixel; Boxgröße: Rand box !important;overflow-wrap: break-word !important;">^[A-Za-z0-9]+$

 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding : 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;Wortumbruch: break-word !important;font-size: 16px;overflow-wrap: break-word !important; Zeilenhöhe: 25px;">^[A-Za-z0-9]{4,40}$<strong mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;font-size: 16px;line-height: 25px;"></strong></span>

长度为3-20的所有字符<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^.{3,20}$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^.{3,20}$</span>

由26个英文字母组成的字符串<span mp-original-font-size="16" mp-original-line-height="25" style="margin : 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break- Wort !important;line-height: 25px;">^[A-Za-z]+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[A-Za-z]+$</span>

Eine Zeichenfolge bestehend aus 26 englischen Großbuchstaben: <span mp-original-font-size="16" mp-original-line-height="25" style=" margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[A-Z]+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[A-Z]+$</span>

Durchsuchen Sie außerdem den Java-Backend-Stack des offiziellen Kontos und antworten Sie auf „Privatarbeit“, um ein Überraschungsgeschenkpaket zu erhalten.

由26个小写英文字母组成的字符串<span mp-original-font-size="16" mp-original-line-height="25" style=" Rand: 0px;Padding: 0px;Umriss: 0px;maximale Breite: 100%;Boxgröße: Rahmenbox !important;Zeilenumbruch: Wortumbruch !important;Schriftgröße: 16px;Überlaufumbruch: Pause -word !important;line-height: 25px;">^[a-z]+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[a-z]+$</span>

由数字和26个英文字母组成的字符串<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[A-Za-z0-9]+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[A-Za-z0-9]+$</span>

由数字、26个英文字母或者下划线组成的字符串<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow- wrap: break-word !important;line-height: 25px;">^w+$ 或 ^w{3,20}<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^w+$ 或 ^w{3,20}</span>

中文、英文、数字包括下划线<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px ;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word ! important;line-height: 25px;">^[u4E00-u9FA5A-Za-z0-9_]+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[u4E00-u9FA5A-Za-z0-9_]+$</span>

中文、英文、数字但不包括下划线等符号<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[u4E00-u9FA5A-Za-z0-9]+$<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[u4E00-u9FA5A-Za-z0-9]+$</span> 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[u4E00-u9FA5A-Za-z0-9]{2,20}$</span> 或 

<span mp-original-font-size="16" mp-original-line-height=" 25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px; overflow-wrap: break-word !important;line-height: 25px;">^[u4E00-u9FA5A-Za-z0-9]{2,20}$🎜</span>🎜

可以输入含有<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px ;">^%&',;=?$"<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^%&',;=?$"</span> 等字符:<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">[^%&',;=?$x22]+</span>[^%&',;=?$x22]+

🎜

禁止输入含有~的字符 <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">[^~x22]+</span>[^~x22]+

🎜

其它

.*匹配除 \n 以外的任何字符。/[\u4E00-\u9FA5]/ 汉字/[\uFF00-\uFFFF]/ 全角符号/[\u0000-\u00FF]/ 半角符号
Nach dem Login kopieren

三、特殊需求表达式

Email 地址<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$</span>

[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(/.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+/.?
Nach dem Login kopieren
[a-zA-z]+://[^\s]* 或 ^http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$
Nach dem Login kopieren
^(13[0-9]|14[5|7]|15[0|1|2|3|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$
Nach dem Login kopieren

电话号码(“XXX-XXXXXXX”、”XXXX-XXXXXXXX”、”XXX-XXXXXXX”、”XXX-XXXXXXXX”、”XXXXXXX”和”XXXXXXXX):<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(\(\d{3,4}-)|\d{3.4}-)?\d{7,8}$</span>

国内电话号码(0511-4405222、021-87888822):<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">\d{3}-\d{8}|\d{4}-\d{7}</span>

身份证号(15位、18位数字):<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^d{15}|d{18}$</span>^d{15}|d{18}$

🎜

短身份证号码(数字、字母x结尾):<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^([0-9]){7,18}(x|X)?</span>$ 或 <span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^d{8,18}|[0-9x]{8,18}|[0-9X]{8,18}?$</span>^([0-9]){7,18}(x|X)?

🎜$ 或 🎜 🎜^d{8,18}|[0-9x]{8,18}|[0-9X]{8,18}?$🎜🎜

Ist das Konto legal (beginnend mit einem Buchstaben, 5–16 Bytes zulässig, alphanumerische Unterstriche zulässig): <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[a-zA-Z][a-zA-Z0-9_]{4,15}$</span>

密码(以字母开头,长度在6~18之间,只能包含字母、数字和下划线):<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[a-zA-Z]w{5,17}$</span>^[a-zA-Z][a-zA-Z0-9_]{4,15} $

🎜🎜🎜Passwort (beginnend mit einem Buchstaben, Länge zwischen 6 und 18, kann nur Buchstaben, Zahlen und Unterstriche enthalten): 🎜🎜^[a-zA-Z]w{5,17 }$🎜🎜

Starkes Passwort (muss eine Kombination aus Groß- und Kleinbuchstaben und Zahlen enthalten, keine Sonderzeichen, Länge zwischen 8 und 10): <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(?=.*d)(?=.*[a-z])(?=.*[A-Z]).{8,10}$</span>

日期格式:<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^d{4}-d{1,2}-d{1,2}</span>^(?=.*d)(?=.*[a-z] ) (?=.*[A-Z]).{8,10}$

🎜🎜🎜Datumsformat: 🎜🎜^d{4}-d{1,2}-d{1, 2 }🎜🎜

一年的12个月(01~09和1~12):<code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(0?[1-9]|1[0-2])$</span>

一个月的31天(01~09和1~31):<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^((0?[1-9])|((1|2)[0-9])|30|31)$</span>^(0?[1-9]|1[0-2])$

🎜🎜🎜一个31 Seiten (01–09 1–31): 🎜🎜^((0?[1-9])|((1|2)[0-9])|30|31)$🎜 🎜

Geldeingabeformat

Es gibt vier Gelddarstellungen, die wir akzeptieren können: „10.000,00“ und „10.000,00“ sowie „10.000“ und „10.000“ ohne „Cent“: <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[1-9][0-9]*$</span>^[1- 9][0 -9]*$

🎜

Damit ist jede Zahl gemeint, die nicht mit 0 beginnt. Allerdings bedeutet es auch, dass kein Zeichen „0“ übergeben wird, daher verwenden wir die folgende Form: <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(0|[1-9][0-9]*)$</span>

一个0或者一个不以0开头的数字.我们还可以允许开头有一个负号:<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^(0|-?[1-9][0-9]*)$</span>^(0|[1-9][ 0 -9]*)$

🎜🎜🎜Eine 0 oder eine Zahl, die nicht mit 0 beginnt. Wir können auch ein negatives Vorzeichen am Anfang zulassen: 🎜🎜^(0|-?[ 1-9 ][0-9]*)$🎜🎜

4. Dies bedeutet eine 0 oder eine Zahl, die negativ sein kann und nicht mit 0 beginnt. Lassen Sie den Benutzer mit 0 beginnen. Entfernen Sie auch das negative Vorzeichen, da Geld niemals negativ sein kann. Wir werden als nächstes hinzufügen Dezimalteil: <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[0-9]+(.[0-9]+)?$</span>

必须说明的是,小数点后面至少应该有1位数,所以”10.”是不通过的,但是 “10” 和 “10.2” 是通过的:<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[0-9]+(.[0-9]{2})?$</span>^[0-9]+(.[0-9]+)?$

🎜🎜🎜Es ist zu beachten, dass mindestens 1 Nachkommastelle stehen sollte Zahl, also wird nicht „10“ übergeben, sondern „10“ und „10.2“: 🎜🎜^[0-9]+(.[0-9]{2})?$🎜 Code>🎜<p mp-original-font-size="17" mp-original-line-height="27" style='margin: 0px 0px 1.2em !important;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;clear: both;min-height: 1em;caret-color: rgb(34, 34, 34);color: rgb(34, 34, 34);font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;font-style: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: 0.544px;text-align: justify;text-indent: 0px;text-transform: none;white-space: normal;word-spacing: 0px;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;text-decoration: none;font-variant-ligatures: normal;orphans: 2;widows: 2;background-color: rgb(255, 255, 255);overflow-wrap: break-word !important;line-height: 27px;'><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">Auf diese Weise legen wir fest, dass nach dem Komma zwei Nachkommastellen stehen müssen. Wenn Sie der Meinung sind, dass es zu hart ist, können Sie Folgendes tun: </span><code mp-original-font-size="14.449999809265137" mp-original- line-height="23" style=" margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrapping; border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border- Radius: 3px;display: inline;line- height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[0-9]+(.[0-9]{1,2})?$</span>^[0-9]+(.[0-9 ]{1,2})?$

🎜

Dadurch kann der Benutzer nur eine Dezimalstelle schreiben. Als nächstes sollten wir die Zahl betrachten <code mp-original-font-size="14.449999809265137" mp-original-line-height="23" style="margin: 0px 0.15em;padding: 0px 0.3em;outline: 0px;max-width: 100%;font-size: 14.45px;font-family: Consolas, Inconsolata, Courier, monospace;white-space: pre-wrap;border-width: 1px;border-style: solid;border-color: rgb(234, 234, 234);background-color: rgb(248, 248, 248);border-radius: 3px;display: inline;line-height: 23px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">逗号</span> 了,我们可以这样:<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^[0-9]{1,3}(,[0-9]{3})*(.[0-9]{1,2})?$</span>comma

🎜 Jetzt können wir Folgendes tun: 🎜🎜^[0-9]{ 1 ,3}(,[0-9]{3})*(.[0-9]{1,2})?$🎜🎜

1到3个数字,后面跟着任意个 逗号+3个数字,逗号成为可选,而不是必须:<span mp-original-font-size="16" mp-original-line-height="25" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 25px;">^([0-9]+|[0-9]{1,3}(,[0-9]{3})*)(.[0-9]{1,2})?$</span>

备注:这就是最终结果了,别忘了+可以用*替代如果你觉得空字符串也可以接受的话(奇怪,为什么?)最后,别忘了在用函数时去掉去掉那个反
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xml文件:^([a-zA-Z]+-?)+[a-zA-Z0-9]+\.[x|X][m|M][l|L]$

中文字符的正则表达式:[\u4e00-\u9fa5]

Doppelbyte-Zeichen: ^x00-xff)

Regulärer Ausdruck für Leerzeilen: ns*r (kann zum Löschen von Leerzeilen verwendet werden)

Regulärer Ausdruck für HTML-Tags: <(S ? )[^>]>.?|<.? /> verschachtelte Tags )

Regulärer Ausdruck für Leerzeichen am Anfang und Ende der Zeile: ^s|s

) (kann zum Löschen von Leerzeichen am Anfang und Ende der Zeile (einschließlich Leerzeichen, Tabulatoren, Formulare) verwendet werden Feeds usw.), sehr nützlicher Ausdruck)


Tencent QQ-Nummer: [1-9][0-9]{4,} (Tencent QQ-Nummer beginnt bei 10000)

China-Postleitzahl: [1-9]d{5}(?!d) (Chinas Postleitzahl ist 6-stellig)

IP-Adresse: d+.d+.d+.d+ (nützlich beim Extrahieren der IP-Adresse)

IP地址:((?:(?:25[0-5]|2[0-4]\d|[01]?\d?\d)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d?\d))

牛逼啊!接私活必备的 N 个开源项目!赶快收藏吧
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IP-v4地址:\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b (提取IP地址时有用)

校验IP-v6地址:

(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))
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子网掩码:

((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))
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校验日期:

^(?:(?!0000)[0-9]{4}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-8])|(?:0[13-9]|1[0-2])-(?:29|30)|(?:0[13578]|1[02])-31)|(?:[0-9]{2}(?:0[48]|[2468][048]|[13579][26])|(?:0[48]|[2468][048]|[13579][26])00)-02-29)$(“yyyy-mm-dd“ 格式的日期校验,已考虑平闰年。)
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抽取注释:<span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;"><!--(.*?)--></span>

查找CSS属性:<span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;">^\\s*[a-zA-Z\\-]+\\s*[:]{1}\\s[a-zA-Z0-9\\s.#]+[;]{1}</span>

提取页面超链接:<code mp-original-font-size="14" mp-original-line-height="24" style='margin: 0px 2px;padding: 2px 4px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 14px;border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;background-color: rgba(27, 31, 35, 0.0470588);font-family: "Operator Mono", Consolas, Monaco, Menlo, monospace;word-break: break-all;color: rgb(255, 93, 108);overflow-wrap: break-word !important;line-height: 24px;'><span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;">(<a\s*(?!.*\brel=)[^>]*)(href="https?:\/\/)((?!(?:(?:www\.)?'.implode('|(?:www\.)?', $follow_list).'))[^" rel="external nofollow" ]+)"((?!.*\brel=)[^>]*)(?:[^>]*)></span>

提取网页图片:<span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;">\< *[img][^\>]*[src] *= *[\"\']{0,1}([^\"\'\ >]*)</span>(]*)(href="https?:\/\/)((?!(?:(?:www\.)?'.implode('|(? :www\.)?', $follow_list).'))[^" rel="external nofollow" ]+)"((?!.*\brel=)[^>]*)(?:[^ >]*)>

🎜🎜🎜提取网页图片:🎜🎜\< *[img][^\\>]*[src] *= *[\"\']{0,1}([^\"\'\ >]*)🎜🎜

Durchsuchen Sie außerdem das offizielle Konto GitHub Ape Backstage und antworten Sie auf „Geld verdienen“, um ein Überraschungsgeschenkpaket zu erhalten.

Farbcode der Webseite extrahieren:<code mp-original-font-size="14" mp-original-line-height="24" style='margin: 0px 2px;padding: 2px 4px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 14px;border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;background-color: rgba(27, 31, 35, 0.0470588);font-family: "Operator Mono", Consolas, Monaco, Menlo, monospace;word-break: break-all;color: rgb(255, 93, 108);overflow-wrap: break-word !important;line-height: 24px;'><span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;">^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$</span>^#([A - Fa-f0-9]{6}|[A-Fa-f0-9]{3})$

🎜

文件扩展名效验:<code mp-original-font-size="14" mp-original-line-height="24" style='margin: 0px 2px;padding: 2px 4px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 14px;border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;background-color: rgba(27, 31, 35, 0.0470588);font-family: "Operator Mono", Consolas, Monaco, Menlo, monospace;word-break: break-all;color: rgb(255, 93, 108);overflow-wrap: break-word !important;line-height: 24px;'><span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;">^([a-zA-Z]\:|\)\([^\]+\)*[^\/:*?"<>|]+\.txt(l)?$</span>

判断IE版本:<span mp-original-font-size="16" mp-original-line-height="28" style="margin: 0px;padding: 0px;outline: 0px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 16px;overflow-wrap: break-word !important;line-height: 28px;">^.*MSIE [5-8](?:\.[0-9]+)?(?!.*Trident\/[5-9]\.0).*$</span>^([a-zA-Z ]\:|\\)\\([^\\]+\\)*[^\/:*?"<>|]+\.txt(l)?$

🎜🎜 🎜判断IE版本:🎜🎜^.*MSIE [5-8]( ?:\.[0-9]+)?(?!.*Trident\/[5-9]\.0).*$🎜🎜


Anhang:

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Ein Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!

Das obige ist der detaillierte Inhalt vonEin Muss für Betrieb und Wartung, ein super umfassendes Kurzreferenzhandbuch zu regulären Ausdrücken, holen Sie es sich jetzt!. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!

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