Question

如何根据一个值来动态让select下的option选中

Answer 1

<select id="select_id" >
<option value="0" >请选择</option>
<option value="1">苏宁易购</option>
<option value="2">天猫旗舰店</option>
<option value="3">国美商城</option>
<option value="4">华为商城</option>
<option value="5">1号店</option>
</select>

[javascript] view plain copy
$("#select_id option[value='1']").removeAttr("selected");根据值去除选中状态

$("#select_id option[value='"+msg.data.categoryId+"']").attr("selected","selected");根据值让option选中