<form method="post">
<select name="for">
<option value="-1">A</option>
....
</select>
<input type="submit" value="Submit" />
</form>
单击提交按钮时,所选值将返回默认值。提交后选择的值是否可以保持不变?
<form method="post">
<select name="for">
<option value="-1">A</option>
....
</select>
<input type="submit" value="Submit" />
</form>
单击提交按钮时,所选值将返回默认值。提交后选择的值是否可以保持不变?