修改的值可以提交给后台，但是后台到前端显示的时候 总是显示选择框的第一个值，跪求怎么解决？？？？？？？？？？？

<div class="layui-form-item">
<label for="L_pass" class="layui-form-label">
<span class="x-red">*</span>技术职称
</label>
<div class="layui-input-inline">
<select id="technicalPost" name="technicalPost" class="layui-form-select" required="" lay-verify="nikename" autocomplete="off" class="layui-input">
<option value="初级">初级</option>
<option value="中级">中级</option>
<option value="副高级">副高级</option>
<option value="正高级">正高级</option>
</select>
</div>
<div class="layui-form-mid layui-word-aux">
</div>
</div>
》》》》》》》》》》》》分割线》》》》》》》》》》》》》》》》》》》》》》》》
<script>
layui.use(['form','layer'], function(){
$ = layui.jquery;
var form = layui.form
,layer = layui.layer;
$(":radio[name='gender'][value='"+${pro.gender}+"']").attr("checked",true);
$("#workStatus").find('option[value="'+${pro.workStatus}+'"]').attr("selected",true);
$("#education").find('option[value="'+${pro.education}+'"]').attr("selected",true);
$("#administrative").find('option[value="'+${pro.administrative}+'"]').attr("selected",true);
$("#technicalPost").find('option[value="'+${pro.technicalPost}+'"]').attr("selected",true);
form.render();
});
</script>