Small exercises for lists and loops used in Python

#author devilfproduct_list= [    ('iphone',5800),    ('Mac Pro',9800),    ('Bike', -),    ('Watch',10000),    ('Coffee',123)]shop_list=[]salary= Input ('pls enter your salary:')ifsalary.isdigit (): #判断是否为整形, or exit salary=int(Salary) whileTrue: forIndex,infoinchEnumerate (product_list): #打印列表 # Print (Product_list.index (info), info) print (in Dex,info) User_choice= Input ('pls enter what buy\n>>>:') #输入要购买的商品 numberifuser_choice.isdigit (): #再判断下输入的是否是数字, otherwise quit User_choice=int(User_choice)ifUser_choice <= Len (product_list) and User_choice >=0: #判断输入的编号是否在商品列表的编号范围内 p_item=Product_list[user_choice] #取出编号对应的商品名称ifp_item[1] <=Salary: #判断改商品的价格是否在工资范围内 shop_list.append (P_item) #如果在工资范围内, buy! Salary-= p_item[1] #总工资便会减少对应的钱 Print ('Added%s to shopping cart,your current balance is%s'%(p_item,salary))Else: Print ('your current balance was%s, now was not enough'%(Salary))Else: Print ('Product%s is not exist!'%user_choice) elif User_choice=='Q': #如果输入的是'Q', you exit print ('-------------Shopping list------------')             forPinchshop_list:print (p) print ('Quit.....,your Current Money:', Salary) exit ()Else: Print ('Invalid Option')

Small exercises for lists and loops used in Python