Introduction - If you have any usage issues, please Google them yourself
Micro-channel analog/QQ red envelopes keypad to enter the number [1..50] and the amount of [0.01-200] (without regard to the input error), the amount produced per person to get a red envelope, the relationship between the amount and the number to be reasonable (amount* the number of ≥ 0.01), the amount per person to get a red envelope to be reasonable (≥0.01)