正则表达式取值 请各位高手请进来帮帮小弟

Question

 <img src="http://img05.taobaocdn.com/imgextra/i5/T1v5BkXiNgA0PzAOZ8_100830.jpg_40x40.jpg"/>
怎么用正则表达式将图片名称取出来 (如40x40.jpg名称)

Answer 1

string src="http://img05.taobaocdn.com/imgextra/i5/T1v5BkXiNgA0PzAOZ8_100830.jpg_40x40.jpg";
string jpgname=substring(src.lastindexof("/")+1);

Answer 2

str=" <p> <img src="http://blog.m6699.com/uploadfiles/20080803/2008080322144721340.jpg" alt="" /> </p>" 
var a=///(\d+\.jpg)/gi 
str=str.replace(a,"$1")set reg=New RegExp 
reg.IgnoreCase=True 
reg.Global=True 
reg.Pattern=上面写了 
str = reg.Replace(str,"$1") 

Answer 3

你这个啥规则
T1v5BkXiNgA0PzAOZ8_100830.jpg_40x40.jpg
取jpg_后面的？

Answer 4

<%@ Page language="C#"%>
<%@ Import Namespace="System.Text.RegularExpressions"%><script runat="server">
protected void page_load(object sender,EventArgs e){
String content=@"<img src=""http://img05.taobaocdn.com/imgextra/i5/T1v5BkXiNgA0PzAOZ8_100830.jpg_40x40.jpg""/>";
String pattern=@"<img.*?src=""(.*?)"".*?>";
MatchCollection mc=Regex.Matches(content,pattern);
if(mc.Count>0){
Response.Write("图片"+mc[0].Groups[1]);
}
}
</script>

Answer 5

string reg=@"(?i)<IMG src=(['""])(?<img>[^'""]+)\1[^>]*>";
Regex reg=new Regex(reg);
foreach(Match m in reg.Matches(""))
{}