下拉列表中有选项,但是又不允许选择,详细代码:<select name="dest"> <optgroup label="==请选择文件夹=="> <option value="6993628">选项1</option><option value="6993629">选项2</option><option value="6993630" selected>选项3</option><option value="6993631">选项4</option><option value="6993632">选项5</option><option value="6993633">选项6</option><option value="6993634">选项7</option> </optgroup> </select>

评论