python购物200元以内(含200元)不打折,200-500元(含500)之内打九折,500-1000(含1000)之内打八折,超过1000元打六折
n =int( input("请输入价格")) y = 0.0 if n<=200: y=n elif n<=500: y=n*0.9 elif n<=1000: y=n*0.8 else: y = n*0.6 print(y)
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