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<!DOCTYPE html> <html> <script src="https://cdn.staticfile.net/angular.js/1.6.9/angular.min.js"></script> <body> <div ng-app="myApp" ng-controller="myCtrl"> <p>两秒后，这个标题将会改变：</p> <h1>{{myHeader}}</h1> </div> <p>$timeout 服务在指定的毫秒数后运行一个函数。</p> <script> var app = angular.module('myApp', []); app.controller('myCtrl', function($scope, $timeout) { $scope.myHeader = "Hello World!"; // 初始化标题 $timeout(function () { $scope.myHeader = "How are you today?"; // 两秒后更改标题 }, 2000); }); </script> </body> </html>