angular中具体ajax写法模版

 var app=angular.module('ajax_angular', []);
 app.controller('test', function ($scope, $http){

      $scope.ajax=function (){
        $http.get('1.php', {params: {a: $scope.num1, b: $scope.num2}}).success(function (res){
          var Res=eval('('+res+')')
          //数据
        }).error(function (){
          alert('错了');
        });


        /*ajax({
          url: '1.php',
          data: {a: $scope.num1, b: $scope.num2},
          success: function (str){
            $scope.result=str;
          }
        });*/
      }
    });