We all know how good Google is at understanding and crawling JavaScript, AJAX and complex web pages in many forms, but Google's John Mueller said, when it comes to discovering links within onclick ...
onclick="javascript:alert()" 和 onclick="alert()" 的区别是前者明确地指定了 JavaScript 作为脚本语言,而后者没有明确指定, 因此在某些情况下可能会导致浏览器使用不同的脚本引擎执行脚本。 通常来说 ...