“Ctrl+/”
“F11/ESC”
<!DOCTYPE html>
<html>
<body>
<div data-ng-app="" data-ng-init="firstName='John'">
<p>姓名为 <span data-ng-bind="firstName"></span></p>
</div>
<script src="https://apps.bdimg.com/libs/angular.js/1.3.9/angular.min.js"></script>
</body>
</html>