mvc ajax call controller

Why 80% of the code can not do farming architect? >>>  

     function btnLogin_click() {

            $.ajax({

                type: "post",

                url: "/ Home / LoginSystem", // controller path

                data: "userAccount="+ $.trim($("#txtUserAccount").val()) + "&userPassWord="+ $.trim($("#txtUserPassWord").val()),   //参数

                cache: false,

                success: function (msg) {

                    if (msg == '1') {

                        location.href ='/Home/Index';

                    }

                    else {

                        alert(msg);

                    }

                }

            });

        }

Reproduced in: https: //my.oschina.net/dongri/blog/610903