Python写出购物车代码

#-*- coding:utf-8 –*-
Commodity=[['iPhone',6000],['Coffee',30],['Computer',10000]]
Salary=int(input("Input your salary"))
cout=0
Names1=[]
while cout==0:

    for i in Commodity:
        print(Commodity.index(i),i)
    Names=input("请输入你要购买的编号")
    if Names.isdigit():
        Names=int(Names)
        if Names<len(Commodity) and Names>=0 and Salary>=Commodity[Names][1]:
            Names1.append(Commodity[Names])
            Salary-=Commodity[Names][1]
            print("你购买了%s,还剩%d元"%(Commodity[Names][0],Salary))
        elif Names<len(Commodity) and Names>=0 and Salary<=Commodity[Names][1]:
            print("你个穷B买不起，快赚钱吧！")
        else:
            print("你输入的编号不在商品之内")
    elif Names=='n'or 'N':
        print("你购买的有：%s,还剩%d元"%(Names1,Salary))
        break
    else:
        print("你输入的有误")