Regex Advance---待验证

Match matchB = Regex.Match("abcdaBCdefg", @"\Babcd\B", RegexOptions.IgnoreCase);
Console.WriteLine(matchB.Value);
Match matchBError = Regex.Match("abcdaBCdefg", @"\babcd\b", RegexOptions.IgnoreCase);
Console.WriteLine("match error " + matchBError.Value);

Match mathcb = Regex.Match("good bad regexsoso", @"\bbad\b", RegexOptions.IgnoreCase);
Console.WriteLine(mathcb.Value);
Match mathcbError = Regex.Match("good bad regexsoso", @"\Bad\B", RegexOptions.IgnoreCase);
Console.WriteLine("match error" + mathcb.Value);

等验证。。。

得参考

参考文献：

http://www.cnblogs.com/fqw1987815/archive/2010/09/28/1837488.html