标签：
<!DOCTYPE html> <html lang="en" ng-app="myApp"> <head> <meta charset="UTF-8"> <title>价格计算器</title> <link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/4.0.0-alpha.2/css/bootstrap.min.css"> </head> <body> <div class="container" ng-controller="MyControl"> <h2>价格计算器</h2> 单价：<input type="text" class="form-control" ng-model="iphone.price"> 数量：<input type="text" class="form-control" ng-model="iphone.num"> <hr> <p>总价：{{ sum() | currency:‘￥‘}}</p> <p>运费：{{ iphone.yf | currency:‘￥‘}}</p> <p>合计：{{ sum() + iphone.yf | currency:‘￥‘}}</p> </div> <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script> <script> var myAng = angular.module(‘myApp‘,[]); myAng.controller(‘MyControl‘,function($scope){ $scope.iphone = { price:10, num:1, yf:10 } $scope.sum = function(){ return $scope.iphone.price*$scope.iphone.num } // $watch监控对象为属性时，不加$scope $scope.$watch(‘iphone.num‘,function(newvalue,oldvalue){ console.log(‘新值：‘+ newvalue +‘；旧值：‘+ oldvalue) }) // $watch监控对象为方法时，加$scope $scope.$watch($scope.sum,function(newvalue,oldvalue){ return $scope.iphone.yf = newvalue >= 100 ? 0 : 10; }) }) </script> </body> </html>
标签：
原文地址：http://www.cnblogs.com/lvmylife/p/5650556.html
