study013
来源：互联网 发布：分析家软件官网 编辑：程序博客网 时间：2024/05/22 01:33
<html><head><title>study 013</title></head><body>
<script language="JavaScript" type="text/javascript">...
function addhead(level)
...{ html = "H" + level; text = this.toString(); start = "<" + html + ">"; stop = "</" + html + ">"; return start + text + stop;
}String.prototype.heading = addhead;document.write("这个是标题1".heading(1));
document.write("这个是标题2".heading(2));</script></body></html>
