这将删除< a 和 / a> ：

mystr = "check this out <a href='http://www.google.com'>Click me</a>. cool, huh?";
alert(mystr.replace(/<a\b[^>]*>(.*?)<\/a>/i,""));

这不是真的万无一失，但也许它会为你的目的做到这一点......

It's not really foolproof, but maybe it'll do the trick for your purpose...