jquery怎么根据后台传过来的值动态设置下拉框、单选框选中

$(function(){    var sex=$("#sex").val();    var marriageStatus=$("#marriageStatus").val();    var education=$("#education").val();    if(!isnull(sex)){        $("input:radio[name=‘sex‘][value="+sex+"]").attr(‘checked‘,‘true‘);    }    if(!isnull(marriageStatus)){        $("input:radio[name=‘marriageStatus‘][value="+marriageStatus+"]").attr(‘checked‘,‘true‘);    }    if(!isnull(education)){        $("#education1 option[value=‘"+education+"‘]").attr("selected", true);    }});

<input type="hidden" id="sex" value="${serviceInfo.sex}"/><input type="radio" name="sex" value="0" checked="checked"/>男<input type="radio" name="sex" value="1"/>女

<input type="hidden" id="marriageStatus" value="${serviceInfo.marriageStatus}"/><input type="radio" name="marriageStatus" value="0" checked="checked"/>是<input type="radio" name="marriageStatus" value="1"/>否

<input type="hidden" id="education" value="${serviceInfo.education}"/><select name="education" id="education1">    <option value="硕士">硕士</option>    <option value="本科">本科</option>    <option value="大专">大专</option>    <option value="其它">其它</option></select>