package utils func OrderIdRange(OrderId int64) (int64, int64) { minOrderId := OrderId //后面有几个零 var maxStep int64 = 1 currValue := minOrderId for { if currValue%10 == 0 { currValue = currValue / 10 maxStep = maxStep * 10 } else { break } } maxOrderId := minOrderId + maxStep - 1 return minOrderId, maxOrderId }