正则表达式问题

Question

我现在有这样一段文本null;http://www.25175.com/200609null;http://www.25175.com/200609/index.aspx;http://www.25175.com/200609/25175/25175_program;http://www.25175.com/200609/25175/25175_asp_psd;http://www.25175.com/200609/25175/25175_asp_code;http://www.25175.com/200609/25175/25175_asp_tech;http://www.25175.com/200609/25175/25175_asp_tools;http://www.25175.com/200609/25175/25175_asp_book;http://www.25175.com/200609/25175/webjavas;http://www.25175.com/200609/25175/25175_asp_all;http://www.25175.com/200609/25175/school/asp;http://www.25175.com/200609/25175/25175_asp_hero;全是由url组成的
现在我想提取出 包含有[ http://www.25175.com/200609/25175]的 url
 这个正则表达式该如何写呢??在线急等

Answer 1

<script type="text/javascript">
<!--
var str = "null;http://www.25175.com/200609null;http://www.25175.com/200609/index.aspx;http://www.25175.com/200609/25175/25175_program;http://www.25175.com/200609/25175/25175_asp_psd;http://www.25175.com/200609/25175/25175_asp_code;http://www.25175.com/200609/25175/25175_asp_tech;http://www.25175.com/200609/25175/25175_asp_tools;http://www.25175.com/200609/25175/25175_asp_book;http://www.25175.com/200609/25175/webjavas;http://www.25175.com/200609/25175/25175_asp_all;http://www.25175.com/200609/25175/school/asp;http://www.25175.com/200609/25175/25175_asp_hero; "; var reg = /http:\/\/www.25175.com\/200609\/25175[^;]*/g; while((result = reg.exec(str)) != null){
document.write(result[0]+"<br/>")
}
//-->
</script>

Answer 2

var s = "null;http://www.25175.com/200609null;http://www.25175.com/200609/index.aspx;http://www.25175.com/200609/25175/25175_program;http://www.25175.com/200609/25175/25175_asp_psd;http://www.25175.com/200609/25175/25175_asp_code;http://www.25175.com/200609/25175/25175_asp_tech;http://www.25175.com/200609/25175/25175_asp_tools;http://www.25175.com/200609/25175/25175_asp_book;http://www.25175.com/200609/25175/webjavas;http://www.25175.com/200609/25175/25175_asp_all;http://www.25175.com/200609/25175/school/asp;http://www.25175.com/200609/25175/25175_asp_hero; ";
var a = s.match(/http:\/\/www\.25175\.com\/200609\/25175.+?(?=;)/g);
alert(a.join("\r"));

Answer 3

import java.util.regex.*;public class RegexTest { /**
 * @param args
 */
public static void main(String[] args) {
String str="null;" +
"http://www.25175.com/200609null;" +
"http://www.25175.com/200609/index.aspx;" +
"http://www.25175.com/200609/25175/25175_program;" +
"http://www.25175.com/200609/25175/25175_asp_psd;" +
"http://www.25175.com/200609/25175/25175_asp_code;" +
"http://www.25175.com/200609/25175/25175_asp_tech;" +
"http://www.25175.com/200609/25175/25175_asp_tools;" +
"http://www.25175.com/200609/25175/25175_asp_book;" +
"http://www.25175.com/200609/25175/webjavas;" +
"http://www.25175.com/200609/25175/25175_asp_all;" +
"http://www.25175.com/200609/25175/school/asp;" +
"http://www.25175.com/200609/25175/25175_asp_hero; ";
String regex="(?<=;)http://www.25175.com/200609/25175.*?(?=;)";
Pattern p=Pattern.compile(regex);
Matcher m=p.matcher(str);
while(m.find()){
System.out.println(m.group());
}
}}测试结果：http://www.25175.com/200609/25175/25175_program
http://www.25175.com/200609/25175/25175_asp_psd
http://www.25175.com/200609/25175/25175_asp_code
http://www.25175.com/200609/25175/25175_asp_tech
http://www.25175.com/200609/25175/25175_asp_tools
http://www.25175.com/200609/25175/25175_asp_book
http://www.25175.com/200609/25175/webjavas
http://www.25175.com/200609/25175/25175_asp_all
http://www.25175.com/200609/25175/school/asp
http://www.25175.com/200609/25175/25175_asp_hero

Answer 4

 String regex="(? <=;)http://www.25175.com/200609/25175.*?(?=;)";