RegexOptions.IgnoreCase正则表达式替换,忽略大小写

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           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*aaaas*}";
           // string regTxt = @"@s*{s*aaaas*}/gi";
            inputstr = Regex.Replace(inputstr, regTxt, "CCC", RegexOptions.IgnoreCase | RegexOptions.Compiled);
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         对于小文本不使用 RegexOptions.Compiled；