C# 正則表達式提取字符串中括號里的值

version = Regex.Replace(str, @"(.*\()(.*)(\).*)", "$2"); //小括號()
    
Regex rgx = new Regex(@"(?i)(?<=\[)(.*)(?=\])");//中括號[]
string tmp = rgx.Match(CvoName).Value;//中括號[]
    
string sheetData = Regex.Match(LinkData, @"\{(.*)\}", RegexOptions.Singleline).Groups[1].Value;//大括號{}