<html>
<head>
<title>select下拉框多选的实现</title>
</head>
<body>
<select name="category[]" multiple>
<option value='php'>php 教程</option>
<option value='java' selected>java 教程</option>
<option value='mysl'>mysql 教程</option>
<option value='js'>js 教程</option>
<option value='html'>html 教程</option>
</select>
</body>
</html>在线运行
只需要设置select选项框的属性multiple即可实现多选功能。然后在选择的是时候按住ctrl来进行多选。
注意:当select选择框使用了多选的时候，select的name要这样命名category[]，需要加上[],否则服务器无法获取到表单post过来的select值。
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