这个正则如何修改？
Regex re = new Regex(@ " <img src=([ " " ']?)(? <scr> [^> ]*)(\1)[\s]*> ", RegexOptions.None);
MatchCollection mc = re.Matches(strText);
foreach (Match ma in mc)
{
strSrc += ma.Groups[ "scr "].Value + "| ";
}
如何能区别大定的IMG如 <IMG SRC= " " ALT= " "> 等

[解决办法]
Regex re = new Regex(@ " <img src=([ " " ']?)(? <scr> [^> ]*)(\1)[\s]*> ", RegexOptions.IgnoreCase);