Use drop-down list boxes for multiple selections

The drop-down list can also perform multiple selection operations. Set the multiple="multiple" attribute in the <select> tag to realize the multi-selection function. Under the Windows operating system, perform When making multiple selections, press the Ctrl key while simultaneously clicking (use Command +clicking under Mac ), you can select multiple options. The following code:

QQ截图20161207132113.png

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>使用下拉列表框进行多选</title>
</head>
<body>
<form>
    <laber>你觉得我帅吗？</laber><br />
    <select multiple=multiple>
        <option value="哎呀妈呀，贼帅了！"selected>哎呀妈呀，贼帅了！</option>
        <option value="最帅！">最帅!</option>
        <option value="宇宙无敌了！">宇宙无敌了！</option>
        <option value="无人能比了！">无人能比了！</option>
    </select>
</form>
</body>
</html>

The results displayed in the browser:

QQ截图20161207132128.png

Continuing Learning

new file

<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>使用下拉列表框进行多选</title> </head> <body> <form> <laber>你觉得我帅吗？</laber><br /> <select multiple=multiple> <option value="哎呀妈呀，贼帅了！"selected>哎呀妈呀，贼帅了！</option> <option value="最帅！">最帅!</option> <option value="宇宙无敌了！">宇宙无敌了！</option> <option value="无人能比了！">无人能比了！</option> </select> </form> </body> </html>

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Use drop-down list boxes for multiple selections

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