html 下拉框Select写法
<select id="conditionMark">
<option value="idCard">身份证</option>
</select>
alert($("#conditionRegistrationType").val());
结果：idCard
<select id="conditionMark">
<option>身份证</option>
</select>
alert($("#conditionRegistrationType").val());
结果：身份证
