<form> 用户名:<input type="text" name="user"/> 邮件:<input type="text" name="email"/> <input type="radio" name="sex" value="男"/>男 <input type="radio" name="sex" value="女"/>女 <input type="button" value="提交"/> </form> <div id="box"></div>
    $("form input[type=button]").click(function () {
        $.ajax({
            type: "POST",
            url: "/user/",
            data:$("form").serialize(),//序列化form表单数据
            success:function (response,status,xhr) {
                $("#box").html(response);
            }
        });
    });
    $("form input[name=sex]").click(function(){
       $("#box").html(decodeURIComponent($(this).serialize()));//序列化radio数据,并对其解码
    });
原文:http://www.cnblogs.com/Yellow0-0River/p/5503461.html