////////////////////////////            string inputstr = "@{AbcD},@{bbbb},@{ABcd}";             string pmType = "@";             string regTxt = (pmType + "\\s*\\{\\s*" + "abcd" + "\\s*\\}").Replace("(", "\\(").Replace(")", "\\)");             //string regTxt = (pmType + "\\s*\\{\\s*" + "aaaa" + "\\s*\\}").Replace("(", "\\(").Replace(")", "\\)");            // string regTxt = @"@\s*\{\s*aaaa\s*\}";            // string regTxt = @"@\s*\{\s*aaaa\s*\}/gi";             inputstr = Regex.Replace(inputstr, regTxt, "CCC", RegexOptions.IgnoreCase | RegexOptions.Compiled); ///////////////          对于小文本不使用 RegexOptions.Compiled；