求 net 这段代码翻译GO

```c# Random random = new Random(); return string.Format("{0}{1}:{2}{3}:{4}{5}:{6}{7}:{8}{9}:{10}{11}", new object[] { random.Next(0, 16).ToString("x"), "6", random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x"), random.Next(0, 16).ToString("x") }).ToLower(); ```