试试这个，注意HTML的语法太复杂了，正规表达式在100％的时间都不正确：

Try this, noting that the grammar of HTML is too complex for regular expressions to be correct 100% of the time:

var regex = /(<([^>]+)>)/ig
,   body = "<p>test</p>"
,   result = body.replace(regex, "");

console.log(result);

如果你愿意使用像 jQuery ，你可以这样做：

If you're willing to use a library such as jQuery, you could simply do this:

console.log($('<p>test</p>').text());