select标签 selected 选中状态动态设置

方法1：

证件类型:<select id="zj">    <option value="">        所有    </option>    <option value="IDCARD"        <c:if test="${requestScope.certidType=='IDCARD'}">selected="true"</c:if>>        身份证    </option>    <option value="PASSPORT"        <c:if test="${requestScope.certidType=='PASSPORT'}">selected="true"</c:if>>        护照    </option></select>

?方法2：

window.onload=function(){ var userType='${userType}'; if(userType == '1') { var code='${code}'; var QState='${QState}'; var selectCode=document.getElementById("code"); var selectQState=document.getElementById("QState"); if(selectCode.length>0){   for(var i=0;i<selectCode.options.length;i++){       if(selectCode.options[i].value==code){          selectCode.options[i].selected=true;          break;       }   } } if(selectQState.length>0){   for(var i=0;i<selectQState.options.length;i++){       if(selectQState.options[i].value==QState){          selectQState.options[i].selected=true;          break;       }   } } }}