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*aaaa\s*\}";
           // string regtxt = @"@\s*\{\s*aaaa\s*\}/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；