我正在尝试使用AngularJS编写一个简单的“ Hello World”应用程序。我希望函数greeting()
可以实时打印在文本输入中插入的名称,但我只会{{greeting()}}
在输出中得到。怎么了?
<!doctype html>
<body ng-app="myApp">
<div ng-controller="userController">
<p>Name: <input type="text" ng-model="user.name"></p>
<p>Surname: <input type="text" ng-model="user.surname"></p>
<p>{{greeting()}}</p>
</div>
<script type="text/javascript">
angular.module("myApp", [])
.controller("userController",
function ($scope) {
$scope.user = {name: "Mario", surname: "Rossi"};
$scope.greeting = function() {
return "Hello " +
$scope.user.name + " " +
$scope.user.surname + "!"
};
});
</script>
</body>
</html>
这是一个示例:我希望看到Hello John Smith!
而不是{{greeting()}}
。
您忘记了包含AngularJS JavaScript。
否则,它可以正常工作:
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<body ng-app="myApp">
<div ng-controller="userController">
<p>Name: <input type="text" ng-model="user.name"></p>
<p>Surname: <input type="text" ng-model="user.surname"></p>
<p>{{greeting()}}</p>
</div>
<script type="text/javascript">
angular.module("myApp", [])
.controller("userController",
function($scope) {
$scope.user = {
name: "Mario",
surname: "Rossi"
};
$scope.greeting = function() {
return "Hello " +
$scope.user.name + " " +
$scope.user.surname + "!"
};
});
</script>
</body>