模拟微信/QQ 发红包 键盘输入人数[1..50]和金额[0.01-200]（不考虑输入错误的情况），产生每个人拿到的红包的金额 ,金额和人数的关系要合理（金额≥人数*0.01），每人拿到的红包金额要合理（≥0.01）-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)