<html><script src="https://cdn.staticfile.net/angular.js/1.6.9/angular.min.js"></script><body ng-app=""><p>请双击标题：</p><h1 ng-dblclick="count = count + 1" ng-init="count=0">欢迎</h1><p>标题已被双击了 {{count}} 次。</p><p>此例将在您每次双击标题时增加变量“count”的值。</p></body></html>