AngularJS依赖注入
Posted hello word
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了AngularJS依赖注入相关的知识，希望对你有一定的参考价值。
<html> <head> <meta charset="utf-8"> <title>AngularJS 依赖注入</title> </head> <body> <h2>AngularJS 简单应用</h2> <div ng-app = "mainApp" ng-controller = "CalcController"> <p>输入一个数字: <input type = "number" ng-model = "number" /></p> <button ng-click = "square()">X<sup>2</sup></button> <p>结果: {{result}}</p> </div> <script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script> <script> var mainApp = angular.module("mainApp", []); // 使用 provider 创建 service 定义一个方法用于计算两数乘积 /*mainApp.config(function($provide) { $provide.provider(‘MathService‘, function() { this.$get = function() { var factory = {}; factory.multiply = function(a, b) { return a * b; } return factory; }; }); });*/ // 创建 value 对象 "defaultInput" 并传递数据 mainApp.value("defaultInput", 5); // 创建 factory "MathService" 用于两数的乘积 provides a method multiply to return multiplication of two numbers mainApp.factory(‘MathService‘, function() { var factory = {}; factory.multiply = function(a, b) { return a * b; } return factory; }); // 在 service 中注入 factory "MathService" mainApp.service(‘CalcService‘, function(MathService){ this.square = function(a) { return MathService.multiply(a,a); } }); // CalcService 和 defaultInput 是前面定义的service和默认值 mainApp.controller(‘CalcController‘, function($scope, CalcService, defaultInput) { $scope.number = defaultInput; $scope.result = CalcService.square($scope.number); // 按钮 ng-click="square" 绑定 $scope.square = function() { $scope.result = CalcService.square($scope.number); } }); </script> </body> </html>
以上是关于AngularJS依赖注入的主要内容，如果未能解决你的问题，请参考以下文章