golang 随机数/域名校验

//随机数生成要用到的 const letterBytes = "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" const ( letterIdxBits = 6 letterIdxMask = 1= 0; { if remain == 0 { cache, remain ...