getElementById,getElementsByTagName,getElementsByName的区别 - 疯子的紫梦's 学习窝
javascript中简单的一句代码,实现删除前的确认对话框

getElementById,getElementsByTagName,getElementsByName的区别

疯子的紫梦 posted @ 2009年5月04日 00:50 in JavaScript , 1106 阅读

getElementById:通过ID控制某个TAG(标签)

getElementsByTagName:取得一组相同TAG的元素集合

getElementsByName:取得相同具有相同Name属性的TAG

 getElementById取得的是一个,所以后面没有加S

 getElementsByTagName       getElementsByName   就有两个S了     他们取得的东西不上一个

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