<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>