Randomrandom=newRandom(~unchecked((int)DateTime.Now.Ticks));privatestringCreateAndCheckCode(Randomrandom,stringcode,intlength)//code激活码前缀{char[]Pattern=newchar[]{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L'...
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