怎么用正则表达式获取 图片路径中的一部分

Question

怎么用正则表达式获取 中 userfiles/image/ppt1.jpg 这部分呢？

Java弄了半天，搞不明白了，大家帮忙，谢谢啦

Answer 1

[code="java"]import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RegexpTest {

public static void main(String[] args) {
    String txt1 = "<img width=\"640\" height=\"480\" alt=\"\" src=\"/project/userfiles/image/ppt1.jpg\" />";
    String txt2 = "<img width=\"640\" height=\"480\" alt=\"\" src=\"/project/userfiles/image/ppt2.jpg\" />";
    String txt3 = "<img width=\"640\" height=\"480\" alt=\"\" src=\"/project/userfiles/image/ppt3.jpg\" />";

    Pattern p = Pattern.compile("userfiles/image/[a-zA-Z0-9]+\\.jpg");

    for (String txt : new String[] { txt1, txt2, txt3 }) {
        Matcher m = p.matcher(txt);
        if (m.find()) {
            String result = m.group(0);
            System.out.println(result);
        }
    }
}

}
[/code]

输出：
[quote]
userfiles/image/ppt1.jpg
userfiles/image/ppt2.jpg
userfiles/image/ppt3.jpg
[/quote]