<script>
function dd()
{
alert( "dfsdfsd" );
}
</script>
<FORM METHOD=POST ACTION="">
<select onChange="dd();">
<option value="1"> 1 </option>
<option value="2"> 2 </option>
<option value="3"> 3 </option>
<option value="4"> 4 </option>
</select>
</FORM>
function dd()
{
alert( "dfsdfsd" );
}
</script>
<FORM METHOD=POST ACTION="">
<select onChange="dd();">
<option value="1"> 1 </option>
<option value="2"> 2 </option>
<option value="3"> 3 </option>
<option value="4"> 4 </option>
</select>
</FORM>
还有,建议使用XHTML标准写法。
标签名,属性名一律小写, 包括onChange -> onchange
function dd()
{
echo "<script>alert('dfsdfsd');</script>";
}
?>
<FORM METHOD=POST ACTION="">
<select onChange="dd()">
<option value="1"> 1 </option>
<option value="2"> 2 </option>
<option value="3"> 3 </option>
<option value="4"> 4 </option>
</select>
</FORM>
js要调用js函数