var strJson = getStrPayJson();            $.ajax({                type: "POST",                url: "/usercenter/paycoupon",                contentType: "application/json",                dataType: "json",                data: JSON.stringify({                    "payUsers": strJson                }),                success: function (jsonResult) {                    alert(jsonResult);                }            });

function getStrPayJson() {        var json = [];        var arrInput = $("input[name=Coupon]").not(":disabled");        $.each(arrInput, function (i, item) {            if (item.value != "") {                var obj = { "UserId": item.id, "Coupon": item.value };                json.push(obj);            }        });        return json;    }