循環列表練習
阿新 • • 發佈:2017-10-10
for in 毛線 enumerate pla bsp img src 余額 num
學習循環列表的練習題:
1、列表下標的取用
2、循環和判斷的邏輯
1 goods_list=[ 2 (‘huaweiP9‘,3200), 3 (‘Macbook‘,6180), 4 (‘furongwang‘,225), 5 (‘chengguangCup‘,85), 6 (‘pythonbook‘,84) 7 ] 8 shopping_list=[] 9 salary=input("請輸入你的工資:") 10 if salary.isdigit(): 11 salary=int(salary) 12 print(goods_list)View Code13 while True: 14 # for index,item in enumerate(goods_list): 15 for item in goods_list: 16 print(goods_list.index(item),item) 17 user_choice = input("選擇要買的東西>>>:") 18 if user_choice.isdigit(): 19 user_choice = int(user_choice) 20 ifuser_choice < len(goods_list) and user_choice >=0: 21 p_item = goods_list[user_choice] 22 if p_item[1] <= salary: #買的起 23 shopping_list.append(p_item) 24 salary -= p_item[1] 25 print("Added %s into shopping cart,your current balance is \033[31;1m%s\033[0m" %(p_item,salary) ) 26 else: 27 print("你的余額只剩%s啦,還買個毛線" % salary) 28 else: 29 print("你選擇的商品序號 %s 不存在!"% user_choice) 30 elif user_choice == ‘q‘: 31 print("--------購物清單------") 32 for p in shopping_list: 33 print(p) 34 print("你的余額:",salary) 35 exit() 36 else: 37 print("輸入錯誤,退出輸入q")
循環列表練習