编辑的时候给select，radio传值选中

<select id="selectType">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>

var type = "3";
$("#selectType").val(type);

<div>
<input type ="radio" name="rating" value="1">1
<input type ="radio" name="rating" value="2">2
<input type ="radio" name="rating" value="3">3
<input type ="radio" name="rating" value="4">4
</div>

$("input[name='rating'][value=2]").attr("checked",true);