日期:2014-05-20 浏览次数:20783 次
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string str = File.ReadAllText("D:\\1.txt", Encoding.Default);
str = Regex.Match(str, @"(?is)(?<=href=[""'][^>""']*?id=)\d+(?=&
------解决方案--------------------
[""'])").Value;
Console.WriteLine(str);