一起看看AngularJS angular.uppercase()的实例，代码：
<!DOCTYPE html>
<html>
<head>
<title>AngularJS 实例 | Web176教程网web176.com</title>
<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 = "web176";
$scope.x2 = angular.$$uppercase($scope.x1);
});
</script>
</body>
</html>看看效果！