javascript怎么获取表单内容

来源：百度知道 编辑：UC知道 时间：2024/05/26 16:00:51
我怎么才能获取下拉列表的值？并alert()打出来

<script type="text/javascript">
function go() {

}

</script>
<form action="1_1.jsp" name="for1">
<select name="select" >
<option value="a" name="a">a</option>
<option value="b" name="b">b</option>
</select>
<input type="button" />
</form>

<script type="text/javascript">
function go() {
alert(document.for1.select1.options.value);

}

</script>
<form action="1_1.jsp" name="for1">
<select name="select1" >
<option value="a" name="a">a</option>
<option value="b" name="b">b</option>
</select>
<input type="button" onclick='go()' />
</form>

<script type="text/javascript">
function go() {
alert(document.getElementById("select").value);
}

</script>
<form action="" name="for1">
<select id="select" >
<option value="a" name="a">a</option>
<option value="b" name="b">b</option>
</select> <