源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="https://cdn.staticfile.org/angular.js/1.7.0/angular.min.js"></script> </head> <body> <div ng-app="myApp" ng-controller="myCtrl"> <p>{{ x1 }}</p> <p>{{ x2 }}</p> </div> <script> var app = angular.module('myApp', []); app.controller('myCtrl', function($scope) { $scope.x1 = "RUNOOB"; $scope.x2 = angular.isNumber($scope.x1); }); </script> </body> </html>
运行结果