此例子看alert弹出时的效果。当然，最重要的是ng-app="MyApp"，这一个是怎么加载的。
<!DOCTYPE html>
<html ng-app="MyApp">
<head>
<title>Study 2</title>
<script type="text/javascript" src="js/angular.js"></script>
</head>
<body>
<div>
1 + 1 = {{1 + 1}}
</div>
<script type="text/javascript">
var app = angular.module("MyApp", [], function() {
//console.log("Test");
alert("test");
});
</script>
</body>
</html>