public static string GetBindQQGroupSignature() { ApolloAccountInfo accountInfo = Singleton <ApolloHelper> .GetInstance().GetAccountInfo(false); if (accountInfo != null) { string text = string.Concat(new object[] { accountInfo.OpenId, "_", Singleton <ApolloHelper> .GetInstance().GetAppId(), "_", Singleton <ApolloHelper> .GetInstance().GetAppKey(), "_", CGuildHelper.GetGroupGuildId(), "_", CGuildHelper.GetGuildLogicWorldId() }); Debug.Log("signature=" + text); return(Utility.CreateMD5Hash(text, Utility.MD5_STRING_CASE.UPPER)); } return(string.Empty); }