W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<html> <body> <script type="text/javascript"> var str="Every man in the world! Every woman on earth!"; patt=/man/g; str2=str.replace(patt,"person"); document.write(str2+"<br />"); patt=/(wo)?man/g; patt.compile(patt); str2=str.replace(patt,"person"); document.write(str2); </script> </body> </html>