RUNOOB.COM
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <script> var str = "abc123def"; var patt1 = /[0-9]+/; document.write(str.match(patt1)); </script> </body> </html>
运行结果