angular之service与factory的用法

angular之service与factory的用法

直接上代码


<!DOCTYPE html>
<html>
<head>
  <title>Angular JS Forms</title>
</head>
<body>
  <h2>AngularJS Sample Application</h2>
  <div ng-app="mainApp" ng-controller="CalcController">
   <p>Enter a number: <input type="number" ng-model="number" />
   <button ng-click="square()">X<sup>2</sup></button>
   <p>Result: {{result}}</p>
  </div>
  <script src="http://libs.useso.com/js/angular.js/1.2.9/angular.js"></script>
  <script>
   var mainApp = angular.module("mainApp", []);
   mainApp.factory('MathService', function() {   
     var factory = {}; 
     factory.multiply = function(a, b) {
      return a * b 
     }
     return factory;
   }); 

   mainApp.service('CalcService', function(MathService){
      this.square = function(a) { 
      return MathService.multiply(a,a); 
     }
   });

   mainApp.controller('CalcController', function($scope, CalcService) {
      $scope.square = function() {
      $scope.result = CalcService.square($scope.number);
     }
   });
  </script>
</body>
</html>