js中使用正则表达式实现replaceAll方法
http://www.360doc.com/content/11/0407/20/2956608_108008354.shtml
<html><head><title></title><script language="javascript">function replaceAll(){var oldValue = "abcdea";var newValue = oldValue.replace(new RegExp("\a","gm"),"x");alert("oldValue="+oldValue+"\n"+"newValue="+newValue);}replaceAll();</script></head><body></body></html>?