你帮我助”软件开发 （以python为程序语言）

在疫情期间，各个小区居民发挥互助精神，进行物品交换，互通有无。请你编写一个物品交换软件

该程序允许添加物品的信息，删除物品的信息，显示物品列表，也允许查找物品的信息

你实现的程序可以采用命令行方式使用，但是鼓励提供GUI

PSP数据统计

Main文件

from stock import Stock

s = Stock()
print('-' * 20 + 'The Menu' + '-' * 20)
print('1.Add your product\n2.Delete product\n3.Search for one product\n4.List all the product in stock\n5.Exit')
while True:
    try:
        info = eval(input('Please select the service you would like：'))
        if info == 1:
            s.UserAdd()
        elif info == 2:
            s.UserDelete()
        elif info == 3:
            s.Search()
        elif info == 4:
            s.ListAll()
        elif info == 5:
            print('Thanks for using!')
            break
        else:
            print("Error for input!")
    except NameError:
        print("Error for input!")

物品类

class Product:
    def __init__(self, name, master):
        self.name = name
        self.master = master

仓储类

from product import Product
class Stock(object):
    def __init__(self):
        self.goods = []

    def Add(self, product):
        self.goods.append(product)

    def Search(self):
        name = input('What product do you want to search for?')
        flag = False
        for i in range(len(self.goods)):
            if self.goods[i].name == name:
                flag = True
                break
        if flag == True:
            print('The product you want to search is here:')
            print('-' * 50)
            for i in range(len(self.goods)):
                if self.goods[i].name == name:
                    print('Product:' + self.goods[i].name + '     Supplier:' + self.goods[i].master)
        else:
            print('There is no such product.')

    def ListAll(self):
        if len(self.goods) == 0:
            print('There is nothing!')
        else:
            print('-' * 20 + 'The Stock List' + '-' * 20)
            for i in range(len(self.goods)):
                    print('Product:'+ self.goods[i].name + '     Supplier:' + self.goods[i].master)

    def UserAdd(self):
        name = input('please enter product:')
        master = input('please enter your name:')
        p = Product(name, master)
        self.Add(p)

    def UserDelete(self):
        print('Please enter the information of product which you want to delete.')
        name = input('please enter your product:')
        master = input('please enter your name:')
        for item in self.goods:
            if name == item.name and master == item.master:
                self.goods.remove(item)

 Github链接：

https://github.com/zousiyuan777/Help-each-other-in-coronavirus