Question

select如何实现进入页面什么也不选择

Answer 1

<form id="form1" name="form1" method="post" action="">
<label>
<select name="select">
<option>希欧曼空啊没；哦</option>
<option>无聊</option>
<option> </option>
<option>hello</option>
</select>
</label>
</form>

Answer 2

<select name="select" size="1">
<option selected="selected"></option>
<option>222</option>
</select>

Answer 3

默认的选项设置为空就可以了<option selected="selected"></option>
<option selected="selected">null</option><option selected="selected">请选择...</option>