# encoding=UTF-8loop=Truemoney=0while loop:    x = raw_input('提示：請投入金幣,結束投幣請按"q"鍵')    if x=='q':        if money==0:            print '錯誤：您未投入過紙幣，請至少投入一張紙幣后才能選購商品'        else:            print '提示：您已結束投幣，將進入購買商品操作界面'            loop = False    else:        try:            x = int(x)            money+=x            print '提示：您此次投幣',x,'元人民幣，您一共投幣',money,'元人民幣'        except Exception,e:            print '錯誤：您的金幣系統(tǒng)不識別，請重新投幣，謝謝！' GoodList = {    '可口可樂':2.5,    '果粒橙':3,    '奶茶':1.5,    '加多寶':4} i=0print '請選擇商品：'for x in GoodList:    i+=1    print '編號',i,'商品名稱',x,'價格',GoodList[x]print fanwei = range(len(GoodList))loop = Truewhile loop:    o = raw_input('提示：請輸入您要購買的商品編號，按"q"鍵結束購買')    if o=='q':        loop = False    else:        try:            o = int(o)            if o>=1 and o<=len(GoodList):                i=0                for x in GoodList:                    i+=1                    if i==o:                        if money>=GoodList[x]:                            money -= GoodList[x]                            print '提示：您購買的商品是:',x,'，價格:',GoodList[x],'，您還剩余：',money,'元人民幣'                            if money==0:                                loop = False                        else:                            print '錯誤：您的余額',money,'元已不足購買此商品',x,'[',GoodList[x],'元]'            else:                print '錯誤：您輸入的商品編號不存在，請重新輸入'        except Exception,e:            print '錯誤：請輸入正確的產(chǎn)品編號，謝謝合作！' if money>0:           print '提示：系統(tǒng)將找您，',money,'元人民幣，歡迎下次光臨'else:    print '提示：您的余額已用完，歡迎下次光臨'