自己没有写博客的习惯,但是看到那么多大佬的作品,感触颇深,故:
程序:购物车程序
1、启动程序后,让用户输入工资,然后打印商品列表
2、允许用户根据商品编号购买商品
3、用户选择商品后,检测余额是否够,够就直接扣款,不够就提醒
4、可以随时退出,退出时,打印已购买商品和余额
#!/usr/bin/python # -*- coding -*- # Author:wangyl product_list = [("Iphone",5800), ("Mac Pro",9800), ("Bick",800), ("Watch",10600), ("Coffee",31), ("Alex python",120)] shopping_list = [] salary = input("Input you salary:") if salary.isdigit(): #判断是否为数字 salary = int(salary) while True: # for item in product_list: # print(product_list.index(item),item) for index,item in enumerate(product_list): print(index,item) user_choice = input("选择要买嘛?>>>>:") if user_choice.isdigit(): user_choice = int(user_choice) if user_choice < len(product_list) and user_choice >= 0: p_item = product_list[user_choice] if p_item[1] <= salary: #买得起 shopping_list.append(p_item) salary -= p_item[1] print("Added %s into shopping cart,you current balance is \033[31;1m%s\033[0m" %(p_item,salary)) #红色 31 绿色 32 else: print("\033[41;1m你的余额只剩[%s]啦,还买个毛线\033[0m"%salary) #背景红色 41 背景绿色 42 else: print("product code [%s] is not exist!"% user_choice) elif user_choice == "q": print("------shopping list-------") for p in shopping_list: print(p) print("Your current balence:",salary) exit() else: print("invalid option")