document.all与getElementById、getElementsByName、getElementsByTagName用法区别 document.

理解这句话可看以下: 例1(这个可以让你理解文档中哪些是对象) Document.All Example Example Heading This is a paragraph. It is only a paragraph. Yet another paragraph. This final paragraph has special emphasis. [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行] 输出结果: 代码如下: Example Heading This i