// factory方式
angular.module(‘myApp‘, []).factory(‘UserService‘, function($http) {    var current_user;    return {        getCurrentUser: function() {            return current_user;        },        setCurrentUser: function(user) {            current_user = user;        }    }});

// service: contructor方式var Person = function($http) {    this.getName = function() {        return $http({            method: ‘GET‘,            url: ‘/api/user‘        });    };};angular.service(‘personService‘, Person);