编写购物商城(1)

kevin 123 50000sky 123 54000mobi 123 80000

import sys,os,getpass,time

def input_handle(s):'''用户输入字符数字转化为数字'''if s.isdigit(): #判断用户输入是否是字符数字
 s = int(s) #是的话就进行转换return s

def framework(user="",init_money='',now_money='',recharge_money='',value=''):'''架构函数，展示用户的基本信息'''os.system("clear")
 init_money = int(init_money)
 now_money = int(now_money)
 recharge_money = int(recharge_money)
 message = '''******************************************************************************* 33[32;1m欢迎来到小猪猪购物商城33[0m*******************************************************************************会员：%s	金额：%d	当前余额：%d	充值金额：%d	购物车:%d''' %(user,init_money,now_money,recharge_money,value) print(message)

def goods_list_show(my_dict):'''商品展示模块，用于展示商品'''local_dict = {}'''对商品列表进行遍历并加上数字编号'''i = 1print("商品列表：")
 print("=================================================================================================")
 print("%-5s %-15s %-10s %-10s %-10s" %("编号","商品名称","商品价格(元)","商品总数量(个)","商品剩余数量(个)"))for k in my_dict.keys():
 v = my_dict[k]if type(v) == dict:
 print("%-5s %-20s %-15d %-18d %-10d" %(i,k,v['price'],v['num'],v['sum']))
 local_dict[i] = [k,v["price"],v['num'],v['sum']]
 i += 1print("=================================================================================================")return local_dict

def cart_goods_show(show_dict):'''显示购物车商品,并加上数字编号'''show_all_sum = 0show_all_num = 0'''对商品列表进行遍历并加上数字编号'''message = ('编号',"商品名称","商品价格(元)","商品总数量(个)","购买数量(个)","购买金额(元)")
 print("%-5s 	 %-20s 	 %-10s 	 %-10s 	 %-10s 	 %-10s" %message)for k in show_dict:
 v = show_dict[k]if type(v) is dict:
 print("%-5s 	 %-10s 	 %-10d 	 %-10d 	 %-10d 	 %-10d" %(k,v[0],v[1],v[2],v[3],v[4]))
 show_all_num += v[4]
 show_all_num += 1print("请确认你购买的商品，总金额：%d元"%(show_all_sum))return (show_all_sum,show_all_num)

def cart_goods_modify(modify_dict,modify_goods_dict):'''购物车商品修改列表'''a_flag = 1while a_flag:
 index = input("请输入商品编号|完成修改(q):" %modify_dict[index][2])if len(index) != 0:
 index = input_handle(index)if index == "q":breakelif index in modify_dict:
 b_flag = 1name = modify_dict[index][0]while b_flag:
 num = input("请输入新的商品数量(最大值为%d)|完成修改(q)：" %modify_dict[index][2])if len(num) != 0:
 num = input_handle(num)if num == 'q':breakelif num == 0:
 modify_goods_dict[name]['num'] = modify_dict[index][2]
 del modify_dict[index]
 b_flag = 0elif num > 0 and num <= modify_dict[index][2]:
 modify_dict[index][3] = num
 modify_dict[index][4] = modify_dict[index][1] * num
 modify_goods_dict[name]['num'] = modify_dict[index][2] - num
 b_flag = 0else:
 passelse:
 passreturn (modify_dict,modify_goods_dict)

def shopping_cart_show(my_cart,my_goods_dict):'''购物车展示'''print("欢迎来到你的购物车".center(80,"#"))
 goods_all_sum = 0goods_all_num = 0if my_cart:'''调用购物车商品列表函数,并返回商品总金额和总数量'''(goods_all_sum,goods_all_num) = cart_goods_show(my_cart)
 choice = input("请进行如下操作：修改记录(c)|继续购物(!c)")if choice == "c":
 (my_shop_cart,my_goods_dict) = cart_goods_modify(my_cart,my_goods_dict)
 (goods_all_sum,goods_all_num) = cart_goods_show(my_cart)else:
 passelse:
 print("您当前的购物车为空".center(80,"#"))

 time.sleep(2)return (goods_all_sum,goods_all_num,my_goods_dict)

def balance_recharge(recharge_init_balance,recharge_now_balance,recharge_money):
 recharge_flag = 1while recharge_flag:
 recharge_num = input("请输入充值金额|返回(b)|退出(q)：")if len(recharge_num) != 0:
 recharge_num = input_handle(recharge_num)if recharge_num == "q":
 sys.exit(0)
 elif recharge_num == 'b':breakelif type(recharge_flag) is int and recharge_num > 0:
 recharge_init_balance += recharge_num
 recharge_now_balance += recharge_num
 recharge_money += recharge_num
 recharge_flag = 0print("充值成功，请查收".center(80,"#"))else:
 passreturn (recharge_init_balance,recharge_now_balance,recharge_money)

def user_billing(billing_list,my_cart,billing_balance):'''结帐模块'''print("欢迎来到结帐模块".center(80,"#"))if my_cart:'''调用购物车商品列表函数'''cart_goods_show(my_cart)
 billing_flag = input("请确认是否商品结算(y|n)：")if billing_flag == "y":
 billing_file = open("info.txt",'w')for user_info in billing_list:
 billing_file.writelines(user_info)
 billing_file.close()
 sys.exit("结帐成功，您当前余额：%d".center(80,"#") %billing_balance)else:
 print("退出结算菜单，继续购物".center(80,"#"))
 time.sleep(2)else:
 print("您当前的购物车为空，无需结算！")
 time.sleep(2)'''主程序开始'''if __name__ == "__main__":
 goods_list = { 'iphone6': {'price':6000,'num':10,'sum':10}, 'ipad': {'price':3000,'num':20,'sum':20}, 'mi4': {'price':2000,'num':43,'sum':43}, 'huawei6_plus': {'price':1999,'num':8,'sum':8},
 }
 i = 0while i < 3: #只要用户登录不超过3次就不断循环
 username = input("请输入用户名：")
 password = input("请输入密码：")
 user_file = open("info.txt",'r')
 user_list = user_file.readlines()
 user_file.close()for user_line in user_list:'''分别获取当前账号、密码和余额信息'''user,passwd,init_balance = user_line.strip('
').split()
 init_balance = int(init_balance)
 now_balance = init_balance
 my_goods_sum = 0if user == username and password == passwd:
 user_shopping_cart = {}
 user_shopping_cart_count = 0recharge_value = 0line_num = user_list.index(user_line)
 first_flag = 1while first_flag:'''调用框架函数