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HTML5特殊符号怎么显示

青灯夜游

Mar 08, 2021 am 11:34 AM

html5 特殊符号

<blockquote><p>在HTML5中，特殊符号可以通过“字符实体”来显示。HTML中一些特殊符号是无法直接使用显示的，例如“<”和“>”，浏览器会误认为它们是标签；此时就可以使用字符实体“<”和“>”来显示它们。</p></blockquote> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/202103/08/2021030811302452454.jpg" class="lazy" alt="HTML5特殊符号怎么显示" ></p> <p>本教程操作环境：windows7系统、HTML5版、Dell G3电脑。</p> <p>在 HTML 中，某些字符是预留的。</p> <p>在 HTML 中不能使用小于号（<）和大于号（>），这是因为浏览器会误认为它们是标签。</p> <p>如下面的html代码:</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'> <body> 显示：<input id="myTest" type="text" value="5<=6" ></input> </body></pre><div class="contentsignin">登录后复制</div></div><p>上面的value属性值中含有“<”，浏览器可能会正常显示，但是在解析的时候可能就会出错。</p><p>如果希望正确地显示预留字符，我们必须在 HTML 源代码中使用字符实体（character entities）。字符实体类似这样：</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>&entity_name; 或 &#entity_number;</pre><div class="contentsignin">登录后复制</div></div><p>如需显示小于号，我们必须这样写：< 或 < 或 <</p> <p>提示：使用实体名而不是数字的好处是，名称易于记忆。不过坏处是，浏览器也许并不支持所有实体名称（对实体数字的支持却很好）。</p> <p>（相关推荐：<a href="https://www.php.cn/div-tutorial.html" target="_blank">html教程</a> ）</p> <p><span style="font-size: 18px;"><strong>特殊字符对应表</strong></span></p> <p>下面附上特殊字符对应表</p> <table> <thead><tr class="firstRow"> <th>字符</th> <th>十进制字符编号</th> <th>实体名字</th> </tr></thead> <tbody> <tr> <td><code>!</code></td> <td><code>&#33;</code></td> <td>惊叹号Exclamation mark</td> </tr> <tr> <td><code>”</code></td> <td> <code>&#34; &quot;</code> 双引号Quotation mark</td> <td> </td> </tr> <tr> <td><code>#</code></td> <td><code>&#35;</code></td> <td>数字标志Number sign</td> </tr> <tr> <td><code>$</code></td> <td><code>&#36;</code></td> <td>美元标志Dollar sign</td> </tr> <tr> <td><code>%</code></td> <td><code>&#37;</code></td> <td>百分号Percent sign</td> </tr> <tr> <td><code>&</code></td> <td><code>& &</code></td> <td>Ampersand</td> </tr> <tr> <td><code>‘</code></td> <td><code>'</code></td> <td>单引号Apostrophe</td> </tr> <tr> <td><code>(</code></td> <td><code>(</code></td> <td>小括号左边部分Left parenthesis</td> </tr> <tr> <td><code>)</code></td> <td><code>)</code></td> <td>小括号右边部分Right parenthesis</td> </tr> <tr> <td><code>*</code></td> <td><code>*</code></td> <td>星号Asterisk</td> </tr> <tr> <td><code>+</code></td> <td><code>+</code></td> <td>加号Plus sign</td> </tr> <tr> <td><code>,</code></td> <td><code>,</code></td> <td>逗号Comma</td> </tr> <tr> <td><code>–</code></td> <td><code>-</code></td> <td>连字号Hyphen</td> </tr> <tr> <td><code>.</code></td> <td><code>.</code></td> <td>句号Period (fullstop)</td> </tr> <tr> <td><code>/</code></td> <td><code>/</code></td> <td>斜杠Solidus (slash)</td> </tr> <tr> <td><code>0</code></td> <td><code>0</code></td> <td>数字0 Digit 0</td> </tr> <tr> <td><code>1</code></td> <td><code>1</code></td> <td>数字1 Digit 1</td> </tr> <tr> <td><code>2</code></td> <td><code>2</code></td> <td>数字2 Digit 2</td> </tr> <tr> <td><code>3</code></td> <td><code>3</code></td> <td>数字3 Digit 3</td> </tr> <tr> <td><code>4</code></td> <td><code>4</code></td> <td>数字4 Digit 4</td> </tr> <tr> <td><code>5</code></td> <td><code>5</code></td> <td>数字5 Digit 5</td> </tr> <tr> <td><code>6</code></td> <td><code>6</code></td> <td>数字6 Digit 6</td> </tr> <tr> <td><code>7</code></td> <td><code>7</code></td> <td>数字7 Digit 7</td> </tr> <tr> <td><code>8</code></td> <td><code>8</code></td> <td>数字8 Digit 8</td> </tr> <tr> <td><code>9</code></td> <td><code>9</code></td> <td>数字9 Digit 9</td> </tr> <tr> <td><code>:</code></td> <td><code>:</code></td> <td>冒号Colon</td> </tr> <tr> <td><code>;</code></td> <td><code>;</code></td> <td>分号Semicolon</td> </tr> <tr> <td><code><</code></td><td><code>< <</code></td><td>小于号Less than</td></tr><tr><td><code>=</code></td><td><code>=</code></td><td>等于符号Equals sign</td></tr><tr><td><code>></code></td> <td><code>> ></code></td> <td>大于号Greater than</td> </tr> <tr> <td><code>?</code></td> <td><code>?</code></td> <td>问号Question mark</td> </tr> <tr> <td><code>@</code></td> <td><code>@</code></td> <td>Commercial at</td> </tr> <tr> <td><code>A</code></td> <td><code>A</code></td> <td>大写A Capital A</td> </tr> <tr> <td><code>B</code></td> <td><code>B</code></td> <td>大写B Capital B</td> </tr> <tr> <td><code>C</code></td> <td><code>C</code></td> <td>大写C Capital C</td> </tr> <tr> <td><code>D</code></td> <td><code>D</code></td> <td>大写D Capital D</td> </tr> <tr> <td><code>E</code></td> <td><code>E</code></td> <td>大写E Capital E</td> </tr> <tr> <td><code>F</code></td> <td><code>F</code></td> <td>大写F Capital F</td> </tr> <tr> <td><code>G</code></td> <td><code>G</code></td> <td>大写G Capital G</td> </tr> <tr> <td><code>H</code></td> <td><code>H</code></td> <td>大写H Capital H</td> </tr> <tr> <td><code>I</code></td> <td><code>I</code></td> <td>大写J Capital I</td> </tr> <tr> <td><code>J</code></td> <td><code>J</code></td> <td>大写K Capital J</td> </tr> <tr> <td><code>K</code></td> <td><code>K</code></td> <td>大写L Capital K</td> </tr> <tr> <td><code>L</code></td> <td><code>L</code></td> <td>大写K Capital L</td> </tr> <tr> <td><code>M</code></td> <td><code>M</code></td> <td>大写M Capital M</td> </tr> <tr> <td><code>N</code></td> <td><code>N</code></td> <td>大写N Capital N</td> </tr> <tr> <td><code>O</code></td> <td><code>O</code></td> <td>大写O Capital O</td> </tr> <tr> <td><code>P</code></td> <td><code>P</code></td> <td>大写P Capital P</td> </tr> <tr> <td><code>Q</code></td> <td><code>Q</code></td> <td>大写Q Capital Q</td> </tr> <tr> <td><code>R</code></td> <td><code>R</code></td> <td>大写R Capital R</td> </tr> <tr> <td><code>S</code></td> <td><code>S</code></td> <td>大写S Capital S</td> </tr> <tr> <td><code>T</code></td> <td><code>T</code></td> <td>大写T Capital T</td> </tr> <tr> <td><code>U</code></td> <td><code>U</code></td> <td>大写U Capital U</td> </tr> <tr> <td><code>V</code></td> <td><code>V</code></td> <td>大写V Capital V</td> </tr> <tr> <td><code>W</code></td> <td><code>W</code></td> <td>大写W Capital W</td> </tr> <tr> <td><code>X</code></td> <td><code>X</code></td> <td>大写X Capital X</td> </tr> <tr> <td><code>Y</code></td> <td><code>Y</code></td> <td>大写Y Capital Y</td> </tr> <tr> <td><code>Z</code></td> <td><code>Z</code></td> <td>大写Z Capital Z</td> </tr> <tr> <td><code>[</code></td> <td><code>[</code></td> <td>中括号左边部分Left square bracket</td> </tr> <tr> <td><code>\</code></td> <td><code>\</code></td> <td>反斜杠Reverse solidus (backslash)</td> </tr> <tr> <td><code>]</code></td> <td><code>]</code></td> <td>中括号右边部分Right square bracket</td> </tr> <tr> <td><code>^</code></td> <td><code>^</code></td> <td>Caret</td> </tr> <tr> <td><code>_</code></td> <td><code>_</code></td> <td>下划线Horizontal bar (underscore)</td> </tr> <tr> <td><code>`</code></td> <td><code>`</code></td> <td>尖重音符Acute accent</td> </tr> <tr> <td><code>a</code></td> <td><code>a</code></td> <td>小写a Small a</td> </tr> <tr> <td><code>b</code></td> <td><code>b</code></td> <td>小写b Small b</td> </tr> <tr> <td><code>c</code></td> <td><code>c</code></td> <td>小写c Small c</td> </tr> <tr> <td><code>d</code></td> <td><code>d</code></td> <td>小写d Small d</td> </tr> <tr> <td><code>e</code></td> <td><code>e</code></td> <td>小写e Small e</td> </tr> <tr> <td><code>f</code></td> <td><code>f</code></td> <td>小写f Small f</td> </tr> <tr> <td><code>g</code></td> <td><code>g</code></td> <td>小写g Small g</td> </tr> <tr> <td><code>h</code></td> <td><code>h</code></td> <td>小写h Small h</td> </tr> <tr> <td><code>i</code></td> <td><code>i</code></td> <td>小写i Small i</td> </tr> <tr> <td><code>j</code></td> <td><code>j</code></td> <td>小写j Small j</td> </tr> <tr> <td><code>k</code></td> <td><code>k</code></td> <td>小写k Small k</td> </tr> <tr> <td><code>l</code></td> <td><code>l</code></td> <td>小写l Small l</td> </tr> <tr> <td><code>m</code></td> <td><code>m</code></td> <td>小写m Small m</td> </tr> <tr> <td><code>n</code></td> <td><code>n</code></td> <td>小写n Small n</td> </tr> <tr> <td><code>o</code></td> <td><code>o</code></td> <td>小写o Small o</td> </tr> <tr> <td><code>p</code></td> <td><code>p</code></td> <td>小写p Small p</td> </tr> <tr> <td><code>q</code></td> <td><code>q</code></td> <td>小写q Small q</td> </tr> <tr> <td><code>r</code></td> <td><code>r</code></td> <td>小写r Small r</td> </tr> <tr> <td><code>s</code></td> <td><code>s</code></td> <td>小写s Small s</td> </tr> <tr> <td><code>t</code></td> <td><code>t</code></td> <td>小写t Small t</td> </tr> <tr> <td><code>u</code></td> <td><code>u</code></td> <td>小写u Small u</td> </tr> <tr> <td><code>v</code></td> <td><code>v</code></td> <td>小写v Small v</td> </tr> <tr> <td><code>w</code></td> <td><code>w</code></td> <td>小写w Small w</td> </tr> <tr> <td><code>x</code></td> <td><code>x</code></td> <td>小写x Small x</td> </tr> <tr> <td><code>y</code></td> <td><code>y</code></td> <td>小写y Small y</td> </tr> <tr> <td><code>z</code></td> <td><code>z</code></td> <td>小写z Small z</td> </tr> <tr> <td><code>{</code></td> <td><code>{</code></td> <td>大括号左边部分Left curly brace</td> </tr> <tr> <td>|</td> <td><code>|</code></td> <td>竖线Vertical bar</td> </tr> <tr> <td><code>}</code></td> <td><code>}</code></td> <td>大括号右边部分Right curly brace</td> </tr> <tr> <td><code>~</code></td> <td><code>~</code></td> <td>Tilde</td> </tr> <tr> <td><code>—</code></td> <td><code></code></td> <td>未使用Unused</td> </tr> <tr> <td> </td> <td><code>  </code></td> <td>空格Nonbreaking space</td> </tr> <tr> <td><code>¡</code></td> <td><code>¡ ¡</code></td> <td>Inverted exclamation</td> </tr> <tr> <td><code>¢</code></td> <td><code>¢ ¢</code></td> <td>货币分标志Cent sign</td> </tr> <tr> <td><code>£</code></td> <td><code>£ £</code></td> <td>英镑标志Pound sterling</td> </tr> <tr> <td><code>¤</code></td> <td><code>¤ ¤</code></td> <td>通用货币标志General currency sign</td> </tr> <tr> <td><code>¥</code></td> <td><code>¥ ¥</code></td> <td>日元标</td> </tr> <tr> <td><code>¦</code></td> <td><code>¦ ¦</code></td> <td>or &brkbar;“`</td> </tr> <tr> <td><code>§</code></td> <td><code>§ §</code></td> <td>分节号Section sign</td> </tr> <tr> <td><code>¨</code></td> <td><code>¨ ¨</code></td> <td>or ¨“`</td> </tr> <tr> <td><code>©</code></td> <td><code>© ©</code></td> <td>版权标志Copyright</td> </tr> <tr> <td><code>ª</code></td> <td><code>ª ª</code></td> <td>Feminine ordinal</td> </tr> <tr> <td><code>«</code></td> <td><code>« «</code></td> <td>Left angle quote, guillemet left</td> </tr> <tr> <td><code>¬</code></td> <td>“`¬ ¬</td> <td>Not sign</td> </tr> <tr> <td>“““</td> <td><code> </code></td> <td>Soft hyphen</td> </tr> <tr> <td><code>®</code></td> <td><code>® ®</code></td> <td>注册商标标志Registered trademark</td> </tr> <tr> <td><code>¯</code></td> <td><code>¯ ¯</code></td> <td>or &hibar;“`</td> </tr> <tr> <td><code>°</code></td> <td><code>° °</code></td> <td>度数标志Degree sign</td> </tr> <tr> <td><code>±</code></td> <td><code>± ±</code></td> <td>加或减Plus or minus</td> </tr> <tr> <td><code>²</code></td> <td><code>² ²</code></td> <td>上标2 Superscript two</td> </tr> <tr> <td><code>³</code></td> <td><code>³ ³</code></td> <td>上标3 Superscript three</td> </tr> <tr> <td><code>´</code></td> <td><code>´ ´</code></td> <td>尖重音符Acute accent</td> </tr> <tr> <td><code>µ</code></td> <td><code>µ µ</code></td> <td>Micro sign</td> </tr> <tr> <td><code>¶</code></td> <td><code>¶ ¶</code></td> <td>Paragraph sign</td> </tr> <tr> <td><code>·</code></td> <td><code>· ·</code></td> <td>Middle dot</td> </tr> <tr> <td><code>¸</code></td> <td><code>¸ ¸</code></td> <td>Cedilla</td> </tr> <tr> <td><code>¹</code></td> <td><code>¹ ¹</code></td> <td>上标1 Superscript one</td> </tr> <tr> <td><code>º</code></td> <td><code>º º</code></td> <td>Masculine ordinal</td> </tr> <tr> <td><code>»</code></td> <td><code>» »</code></td> <td>Right angle quote, guillemet right</td> </tr> <tr> <td><code>¼</code></td> <td><code>¼ ¼</code></td> <td>四分之一Fraction one-fourth</td> </tr> <tr> <td><code>½</code></td> <td><code>½ ½</code></td> <td>二分之一Fraction one-half</td> </tr> <tr> <td><code>¾</code></td> <td><code>¾ ¾</code></td> <td>四分之三Fraction three-fourths</td> </tr> <tr> <td><code>¿</code></td> <td><code>¿ ¿</code></td> <td>Inverted question mark</td> </tr> <tr> <td><code>À</code></td> <td><code>À À</code></td> <td>Capital A, grave accent</td> </tr> <tr> <td><code>Á</code></td> <td><code>Á Á</code></td> <td>Capital A, acute accent</td> </tr> <tr> <td><code>Â</code></td> <td><code>Â Â</code></td> <td>Capital A, circumflex</td> </tr> <tr> <td><code>Ã</code></td> <td><code>Ã Ã</code></td> <td>Capital A, tilde</td> </tr> <tr> <td><code>Ä</code></td> <td><code>Ä Ä</code></td> <td>Capital A, di?esis / umlaut</td> </tr> <tr> <td><code>Å</code></td> <td><code>Å Å</code></td> <td>Capital A, ring</td> </tr> <tr> <td><code>Æ</code></td> <td><code>Æ Æ</code></td> <td>Capital AE ligature</td> </tr> <tr> <td><code>Ç</code></td> <td><code>Ç Ç</code></td> <td>Capital C, cedilla</td> </tr> <tr> <td><code>È</code></td> <td><code>È È</code></td> <td>Capital E, grave accent</td> </tr> <tr> <td><code>É</code></td> <td><code>É É</code></td> <td>Capital E, acute accent</td> </tr> <tr> <td><code>Ê</code></td> <td><code>Ê Ê</code></td> <td>Capital E, circumflex</td> </tr> <tr> <td><code>Ë</code></td> <td><code>Ë Ë</code></td> <td>Capital E, di?esis / umlaut</td> </tr> <tr> <td><code>Ì</code></td> <td><code>Ì Ì</code></td> <td>Capital I, grave accent</td> </tr> <tr> <td><code>Í</code></td> <td><code>Í Í</code></td> <td>Capital I, acute accent</td> </tr> <tr> <td><code>Î</code></td> <td><code>Î Î</code></td> <td>Capital I, circumflex</td> </tr> <tr> <td><code>Ï</code></td> <td><code>Ï Ï</code></td> <td>Capital I, di?esis / umlaut</td> </tr> <tr> <td><code>Ð</code></td> <td><code>Ð Ð</code></td> <td>Capital Eth, Icelandic</td> </tr> <tr> <td><code>Ñ</code></td> <td><code>Ñ Ñ</code></td> <td>Capital N, tilde</td> </tr> <tr> <td><code>Ò</code></td> <td><code>Ò Ò</code></td> <td>Capital O, grave accent</td> </tr> <tr> <td><code>Ó</code></td> <td><code>Ó Ó</code></td> <td>Capital O, acute accent</td> </tr> <tr> <td><code>Ô</code></td> <td><code>Ô Ô</code></td> <td>Capital O, circumflex</td> </tr> <tr> <td><code>Õ</code></td> <td><code>Õ Õ</code></td> <td>Capital O, tilde</td> </tr> <tr> <td><code>Ö</code></td> <td><code>Ö Ö</code></td> <td>Capital O, di?esis / umlaut</td> </tr> <tr> <td><code>×</code></td> <td><code>× ×</code></td> <td>乘号Multiply sign</td> </tr> <tr> <td><code>Ø</code></td> <td><code>Ø Ø</code></td> <td>Capital O, slash</td> </tr> <tr> <td><code>Ù</code></td> <td><code>Ù Ù</code></td> <td>Capital U, grave accent</td> </tr> <tr> <td><code>Ú</code></td> <td><code>Ú Ú</code></td> <td>Capital U, acute accent</td> </tr> <tr> <td><code>Û</code></td> <td><code>Û Û</code></td> <td>Capital U, circumflex</td> </tr> <tr> <td><code>Ü</code></td> <td><code>Ü Ü</code></td> <td>Capital U, di?esis / umlaut</td> </tr> <tr> <td><code>Ý</code></td> <td><code>Ý Ý</code></td> <td>Capital Y, acute accent</td> </tr> <tr> <td><code>Þ</code></td> <td><code>Þ Þ</code></td> <td>Capital Thorn, Icelandic</td> </tr> <tr> <td><code>ß</code></td> <td><code>ß ß</code></td> <td>Small sharp s, German sz</td> </tr> <tr> <td><code>à</code></td> <td><code>à à</code></td> <td>Small a, grave accent</td> </tr> <tr> <td><code>á</code></td> <td><code>á á</code></td> <td>Small a, acute accent</td> </tr> <tr> <td><code>â</code></td> <td><code>â â</code></td> <td>Small a, circumflex</td> </tr> <tr> <td><code>ã</code></td> <td><code>ã ã</code></td> <td>Small a, tilde</td> </tr> <tr> <td><code>ä</code></td> <td><code>ä ä</code></td> <td>Small a, di?esis / umlaut</td> </tr> <tr> <td><code>å</code></td> <td><code>å å</code></td> <td>Small a, ring</td> </tr> <tr> <td><code>æ</code></td> <td><code>æ æ</code></td> <td>Small ae ligature</td> </tr> <tr> <td><code>ç</code></td> <td><code>ç ç</code></td> <td>Small c, cedilla</td> </tr> <tr> <td><code>è</code></td> <td><code>è è</code></td> <td>Small e, grave accent</td> </tr> <tr> <td><code>é</code></td> <td><code>é é</code></td> <td>Small e, acute accent</td> </tr> <tr> <td><code>ê</code></td> <td><code>ê ê</code></td> <td>Small e, circumflex</td> </tr> <tr> <td><code>ë</code></td> <td><code>ë ë</code></td> <td>Small e, di?esis / umlaut</td> </tr> <tr> <td><code>ì</code></td> <td><code>ì ì</code></td> <td>Small i, grave accent</td> </tr> <tr> <td><code>í</code></td> <td><code>í í</code></td> <td>Small i, acute accent</td> </tr> <tr> <td><code>î</code></td> <td><code>î î</code></td> <td>Small i, circumflex</td> </tr> <tr> <td><code>ï</code></td> <td><code>ï ï</code></td> <td>Small i, di?esis / umlaut</td> </tr> <tr> <td><code>ð</code></td> <td><code>ð ð</code></td> <td>Small eth, Icelandic</td> </tr> <tr> <td><code>ñ</code></td> <td><code>ñ ñ</code></td> <td>Small n, tilde</td> </tr> <tr> <td><code>ò</code></td> <td><code>ò ò</code></td> <td>Small o, grave accent</td> </tr> <tr> <td><code>ó</code></td> <td><code>ó ó</code></td> <td>Small o, acute accent</td> </tr> <tr> <td><code>ô</code></td> <td><code>ô ô</code></td> <td>Small o, circumflex</td> </tr> <tr> <td><code>õ</code></td> <td><code>õ õ</code></td> <td>Small o, tilde</td> </tr> <tr> <td><code>ö</code></td> <td><code>ö ö</code></td> <td>Small o, di?esis / umlaut</td> </tr> <tr> <td><code>÷</code></td> <td><code>÷ ÷</code></td> <td>除号Division sign</td> </tr> <tr> <td><code>ø</code></td> <td><code>ø ø</code></td> <td>Small o, slash</td> </tr> <tr> <td><code>ù</code></td> <td><code>ù ù</code></td> <td>Small u, grave accent</td> </tr> <tr> <td><code>ú</code></td> <td><code>ú ú</code></td> <td>Small u, acute accent</td> </tr> <tr> <td><code>û</code></td> <td><code>û û</code></td> <td>Small u, circumflex</td> </tr> <tr> <td><code>ü</code></td> <td><code>ü ü</code></td> <td>Small u, di?esis / umlaut</td> </tr> <tr> <td><code>ý</code></td> <td><code>ý ý</code></td> <td>Small y, acute accent</td> </tr> <tr> <td><code>þ</code></td> <td><code>þ þ</code></td> <td>Small thorn, Icelandic</td> </tr> <tr> <td><code>ÿ</code></td> <td><code>ÿ ÿ</code></td> <td>Small y, umlaut</td> </tr> </tbody> </table> <p>更多编程相关知识，请访问：<a href="https://www.php.cn/course.html" target="_blank" textvalue="编程视频">编程视频</a>！！</p>

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