<div ng-app="myApp" ng-controller="myCtrl">
<input ng-model="name">
<h1>{{greeting}}</h1>
<button ng-click='sayHello()'>点我</button> </div>
<script>
var app = angular.module('myApp', []);app.controller('myCtrl', function($scope) {
$scope.name = "Runoob";
$scope.sayHello = function() {
$scope.greeting = 'Hello ' + $scope.name + '!'; };});
</script>
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