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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="caseCtrl"> <h1>{{txt | uppercase}}</h1> </div> <script> var app = angular.module('myApp', []); app.controller('caseCtrl', function($scope) { $scope.txt = "Hello World!"; }); </script> <p>文本以大写字母显示。</p> </body> </html>