编写一个计算个人所得税的程序,主要就是运用if分支结构,初学者不会呀555,求帮助!!

def main():
# Python资料源码电子书白嫖君羊:708525271
i = int(input('请输入当月的利润I(万元):'))
if i <= 10:
cash = i * 0.1
elif 10 < i < 20:
cash = (i - 10) * 0.075 + 10 * 0.1
elif 20 <= i <= 40:
cash = (i - 20) * 0.05 + 10 * 0.075 + 10 * 0.1
elif 40 <= i <= 60:
cash = (i - 40) * 0.05 + 20 * 0.05 + 10 * 0.075 + 10 * 0.1
elif 60 <= i <= 100:
cash = (i - 60) * 0.015 + 20 * 0.03 + 20 * 0.05 + 10 * 0.075 + 10 * 0.1
elif 100 <= i:
cash = (
i - 100
) * 0.01 + 40 * 0.015 + 20 * 0.03 + 20 * 0.05 + 10 * 0.075 + 10 * 0.1
else:
print('输入有误')
print('可得奖金(万元)', cash)