def div(num1,num2):
growth = (num1-num2)/num2
percent = str(growth*100) + '%'
return percent
def warning():
print('警告:你确定上个月不亏也不赚吗?')
def main():
num1 = int(input('请输入这个月的利润:'))
num2 = int(input('请输入上个月的利润:'))
while 1:
if nmu2 == 0:
print(warning())
else:
print('本月的利润增长率为:'+div(num1,num2))
main()
就是最后一行报错 但是感觉没啥错呀...
感谢