function postSimpleData() {        $.ajax({            type: "POST",            url: "/Service/SimpleData",            contentType: "application/json", //必须有            dataType: "json", //表示返回值类型，不必须            data: JSON.stringify({ 'foo': 'foovalue', 'bar': 'barvalue' }),  //相当于 //data: "{'str1':'foovalue', 'str2':'barvalue'}",            success: function (jsonResult) {                alert(jsonResult);            }        });    }    function postListString() {        $.ajax({            type: "POST",            url: "/Service/ListString",            contentType: "application/json",            dataType: "json",            data: JSON.stringify({ "BuIds": ["1", "2", "3"] }),            success: function (jsonResult) {                alert(jsonResult);            }        });    }    function postEmployees() {        $.ajax({            type: "POST",            url: "/Service/Employees",            contentType: "application/json",            dataType: "json",            data: JSON.stringify({                "Employees": [                                    { "firstName": "Bill", "lastName": "Gates" },                                    { "firstName": "George", "lastName": "Bush" },                                    { "firstName": "Thomas", "lastName": "Carter" }                                 ]            }),            success: function (jsonResult) {                alert(jsonResult);            }        });    }