1、错误描述
2、错误原因
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="../js/angular.min.js" ></script>
<script>
</script>
</head>
<body>
<div>
<input type="text" ng-model="username" placeholder="请输入用户名" /><br>
{{username}}
</div>
</body>
</html>
页面展示的是username变量,没有展示成需要的;由于该变量没有受AngularJS控制,需要添加ng-app
3、解决办法
<!DOCTYPE html>
<html ng-app>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="../js/angular.min.js" ></script>
<script>
</script>
</head>
<body>
<div>
<input type="text" ng-model="username" placeholder="请输入用户名" /><br>
{{username}}
</div>
</body>
</html>