CNN84school在线测试工具 - 语法例子使用教程参考手册运行参数

编辑您的代码：	查看结果:
<html> <body> <script type="text/javascript"> var str = "The rain in Spain stays mainly in the plain"; var patt1 = new RegExp("ain", "g"); for(i = 0; i < 4; i++) { patt1.test(str) document.write("ain found. index now at: " + patt1.lastIndex); document.write("<br />"); } </script> </body> </html>

查看结果: