shopping_car()
from atm.lib_common.file_handle import *
from atm.core.shopping import goods_show
from atm.lib_common.money_enquiry import *
def compute_money_total(username):
"""计算购物车总价
返回购物车总价和购物车字典
"""
goods_dict=dict()
money_total=0
print("\033[0;33;40m", "欢迎来到购物车功能", "\033[0m")
goods_list=file_r(r"F:\pylearn\atm\api\购物车列表.txt")
for i in goods_list:
goodsname=i.strip().split(":")[1] # 商品名称
goodsnum=i.strip().split(":")[2]# 数量
goodsmoney=i.strip().split(":")[3] # 小计
goods_dict[goodsname]=[goodsnum,goodsmoney]
#print(goods_dict)
for i in goods_dict:
if goods_dict[i][1].isdigit():
goods_money_int=int(goods_dict[i][1])
#print(goods_money_int)
money_total=money_total+goods_money_int
#print(money_total)
return money_total,goods_dict
def modify_shopping_car(username):
"""修改购物车商品以及数量"""
money_total,goods_dict=compute_money_total("黄健")
print("\033[0;33;40m", "现有购物车列表如下", "\033[0m")
print(goods_dict)
print(f"总共需要支付{money_total}")
money_enquiry(username)
goods_np_dict=goods_show()
#print(goods_np_dict)
modify_target=input("请输入你想修改的商品名称:>>>")
modify_num=input(f"你想将{modify_target}的数量更改为:>>>")
goods_dict[modify_target][0]=modify_num#修改数量
goods_dict[modify_target][1]=int(goods_np_dict[modify_target])*int(modify_num)#修改小计
print("\033[0;33;40m", "修改成功!修改后购物车列表如下", "\033[0m")
print(goods_dict)
file_w(r"F:\pylearn\atm\api\购物车列表.txt", "用户名:商品名称:数量:小计\n")
with open(r"F:\pylearn\atm\api\购物车列表.txt","a",encoding="utf8") as fa:
for i in goods_dict:
if i !="商品名称":
fa.write(f"{username}:{i}:{goods_dict[i][0]}:{goods_dict[i][1]}\n")
money_total,goods_dict=compute_money_total("黄健")
print(f"修改后需要支付{money_total}")
标签：goods,shopping,money,atm,day21,购物车,dict,print,total From： https://www.cnblogs.com/yyyjw/p/17898919.html