Select 获取选中值与设置选中

Jquery
 var Site = $('#selectSite').find("option:selected").text();
 $("#selectSite option[value='" + Site + "']").attr("selected", "selected");
 
html
 <div class="col-md-4 col-md-pull-1"> 
  <select id="selectSite"  style="width:130px">  
      <option value="CN">中国厂</option> 
      <option value="US">美国厂</option>
  </select> 
 </div>

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转载自blog.csdn.net/easyboot/article/details/81945161