<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script type="text/javascript" src="../../angular.min.js"></script> </head> <body> <div ng-app="myApp"> <div ng-controller="firstController" ng-click="show()"> {{name}} </div> </div> <script type="text/javascript"> var app = angular.module("myApp", []); //$apply传播Model的变化，Angularjs外部的控制器（Dom事件，外部回调函数）必须调用$apply，需要命令angulrjs刷新自己，applay方法就是做这个事的，把要执行的函数交给$apply去执行。 app.controller('firstController',function($scope,$timeout){ $scope.name = 'hello'; setTimeout(function(){ //$scope.name = 'hi'; 没有反映 $scope.$apply(function(){ $scope.name = 'hi'; }); },2000); //内置timeout /*$timeout(function(){ $scope.name = 'hi'; },2000);*/ $scope.show = function(){ alert('adssdg'); $scope.name = 'hi点击事件发生了'; }; }); </script> </body> </html>
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script type="text/javascript" src="../angular.min.js"></script> </head> <body> <div ng-app="myApp"> <div ng-controller="CartController"> <p>价格:<input type="text" ng-model="iphone.money"></p> <p>个数:<input type="text" ng-model="iphone.num"></p> <p>费用:<span>{{ sum() | currency:'￥' }}</span></p> <p>运费:<span>{{iphone.fre | currency:'￥'}}</span></p> <p>总额:<span>{{ sum() + iphone.fre | currency:'￥'}}</span></p> </div> </div> <script type="text/javascript"> var app = angular.module("myApp", []); app.controller('CartController',function($scope){ $scope.iphone = { money : 5, num : 1, fre : 10 }; $scope.sum = function(){ return $scope.iphone.money * $scope.iphone.num; }; $scope.$watch('iphone.money',function(newVal,oldVal){ console.log(newVal); console.log(oldVal); },true); $scope.$watch($scope.sum,function(newVal,oldVal){ console.log(newVal); console.log(oldVal); $scope.iphone.fre = newVal >= 100 ? 0 : 10; }); }); </script> </body> </html>
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script type="text/javascript" src="../../angular.min.js"></script> </head> <body> <div ng-app="myApp"> <div ng-controller="CartController"> <div ng-repeat="item in items"> <span>{{item.title}}</span> <input ng-model="item.quantity"> <span>{{item.price | currency}}</span> <span>{{item.price * item.quantity | currency}}</span> </div> <div>Total: {{totalCart() | currency}}</div> <div>Discount: {{bill.discount | currency}}</div> <div>Subtotal: {{subtotal() | currency}}</div> </div> </div> <script type="text/javascript"> var app = angular.module("myApp", []); app.controller('CartController',function($scope){ $scope.bill = {}; $scope.items = [ {title: 'Paint pots', quantity: 8, price: 3.95}, {title: 'Polka dots', quantity: 17, price: 12.95}, {title: 'Pebbles', quantity: 5, price: 6.95} ]; $scope.totalCart = function() { var total = 0; for (var i = 0, len = $scope.items.length; i < len; i++) { total = total + $scope.items[i].price * $scope.items[i].quantity; } return total; } $scope.subtotal = function() { return $scope.totalCart() - $scope.discount; }; function calculateDiscount(newValue, oldValue, scope) { $scope.bill.discount = newValue > 100 ? 10 : 0; } $scope.$watch($scope.totalCart, calculateDiscount); }); </script> </body> </html>