Python之示例買寵物

學習了一點簡單語法，感覺可以做個東西啦~。

寫了乙個簡單的****：買寵物！活學活用，自己學的語法知識結合了一點幽默的氣質。

#author： zachary_li

#**購物系統
while true:
maxslary = input("請輸入您準備消費的最大資產值：\n")
if maxslary.isdigit() == true:
if int(maxslary) > 0:
break
else:
print("*輸入資金錯誤!*")
maxslary = int(maxslary)
commodity = [["貓",100,5],["狗",60,5],["鳥",80,5]]
commoditylen = len(commodity)
'''for i in range(0,commoditylen):
print( i+1,".",commodity[i][0],"\t",commodity[i][1],"元")
'''#選擇自己想要的的商品
while true:
print("你的資產剩餘：", maxslary, "元")
print("----------------------------")
print("所有商品列表：")
for i in range(0,commoditylen):
print("no.1", commodity[i][0], "\t", "單價:",commodity[i][1],"元\t","剩餘",commodity[i][2],"只")
choicex = input("請輸入購買寵物的號數（退出輸入q）：")
if choicex == 'q':
print("**退出系統成功，歡迎再次光臨!**")
break
elif choicex == '1':
if commodity[0][1] > maxslary:
print('**大爺，錢不夠呀**')
continue
elif commodity[0][2] <= 0:
print("sorry，本店沒有貓了")
continue
else:
maxslary = maxslary - commodity[0][1]
commodity[0][2] = commodity[0][2] - 1
print("大爺，成功購買乙隻貓！")
elif choicex == '2':
if commodity[1][1] > maxslary:
print('**大爺，錢不夠呀**')
continue
elif commodity[1][2] <= 0:
print("sorry，本店沒有狗了")
continue
else:
maxslary = maxslary - commodity[1][1]
commodity[1][2] = commodity[1][2] - 1
print("大爺，成功購買乙隻狗！")
elif choicex == '3':
if commodity[2][1] > maxslary:
print('**大爺，錢不夠呀**')
continue
elif commodity[2][2] <= 0:
print("sorry，本店沒有鳥了")
continue
else:
maxslary = maxslary - commodity[2][1]
commodity[2][2] = commodity[2][2] - 1
print("大爺，成功購買乙隻鳥！")
else:
print("**輸入寵物號數錯誤，請從新輸入！**")
print("您購買了。。。")

給自己的要求，不求記憶，但求理解，程式語言多不勝數，程式設計思想卻是可以共同。

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