python实现超市进销存管理系统
本文实例为大家分享了python实现超市进销存管理系统的具体代码,供大家参考,具体内容如下
面向对象程序设计
系统包括7种操作,分别是:1.查询所有商品;2.添加商品;3.修改商品;4.删除商品;5.卖出商品;6.汇总;0.退出系统。
定义一个商品类
#定义一个商品类 class Goods: def __init__(self,name,num,cin,cout): self.name = name self.num = num self.cin = cin self.cout = cout def __str__(self): state = "已售罄" if self.num == 0: return '名称:%s , 数量:%d %s, 进货价格:%.2f ,售出价格:%.2f '%(self.name,self.num,state,self.cin,self.cout) else: return '名称:%s , 数量:%d , 进货价格:%.2f ,售出价格:%.2f '%(self.name,self.num,self.cin,self.cout)
定义一个汇总类
#定义一个汇总类 class gGoods: def __init__(self,name,gnum,gcin,gcout): self.name = name self.gnum = gnum self.gcin = gcin self.gcout = gcout def __str__(self): return '名称:%s , 卖出数量:%d , 进货价格:%.2f ,卖出价格:%.2f '%(self.name,self.gnum,self.gcin,self.gcout)
定义管理商品类
#定义管理商品类 class GoodsManager: go=[] js=[] #构造方法 def init(self): self.go.append(Goods('牛奶',5,40,60)) self.go.append(Goods('盒饭',5,10,60)) self.js.append(gGoods('菇娘',1,30,60)) #菜单 def Menu(self): self.init() print('\"超市进销存管理系统\"菜单:') print("1.显示所有商品") print("2.添加新的商品") print("3.修改商品信息") print("4.删除商品") print("5.卖出商品") print("6.汇总") print("0.退出") print("***********************************") while True: SN=int(input("===请输入操作序号:")) if SN in [0,1,2,3,4,5,6]: if SN == 0: print("已经退出") break; if SN == 1: self.Show_all() elif SN == 2: self.Add() elif SN == 3: self.Modify() elif SN == 4: self.Delete() elif SN == 5: self.Shop() elif SN == 6: self.Summary() else: print("输入有误!") #显示 def Show_all(self): for goods in self.go: print (str(goods)) #添加 def Add(self): goods_name = input("请输入商品名称:") ret = self.check(goods_name) if ret != None: print('商品已经存在') print('是否增加商品数量:(y/n)') while True: pd = input() if pd == 'y': goods_num = int(input("请输入商品的数量:")) old_goods = Goods(goods_name,goods_num+ret.num,ret.cin,ret.cout) self.go.remove(ret) self.go.append(old_goods) print("增加成功") break elif pd == 'n': print("已经返回") break else: print("输入有误,重新输入:") else: goods_num = int(input("请输入商品的数量:")) goods_cin = float(input("请输入商品进货价格:")) goods_cout = float(input("请输入商品出货价格:")) if goods_num>0 and goods_cin>0 and goods_cout>0: new_goods= Goods(goods_name,goods_num,goods_cin,goods_cout) self.go.append(new_goods) print("添加成功") else: print("小可爱,输入错误!") #修改 def Modify(self): goods_name = input("请输入需要修改的商品名称:") ret = self.check(goods_name) if ret != None: print(ret) goods_name1 = input("请输入修改后商品的名称:") goods_num = int(input("请输入修改后商品的数量:")) goods_cin = float(input("请输入修改后商品进货价格:")) goods_cout = float(input("请输入修改后商品出货价格:")) old_goods= Goods(goods_name1,goods_num,goods_cin,goods_cout) self.go.remove(ret) self.go.append(old_goods) print("修改成功") else: print("小可爱,没有此商品!") #检查 def check(self,goods_name): for goods in self.go: if goods.name == goods_name: return goods else: return None #检查js def checkjs(self,goods_name): for goods in self.js: if goods.name ==goods_name: return goods else: return None #删除 def Delete(self): goods_name = input("请输入需要删除的商品名称:") ret = self.check(goods_name) if ret != None: print(ret) print('是否删除商品:(y/n)') while True: pd = input() if pd == 'y': self.go.remove(ret) print("删除成功") break elif pd == 'n': print("已经返回") break else: print("输入有误,重新输入:") else: print("小可爱,没有此商品!") #卖出 def Shop(self): goods_name = input("请输入需要卖出的商品名称:") ret = self.check(goods_name) if ret != None: g_num=int(input("卖出个数:")) if ret.num-g_num<0: print("该商品数量不足!请补充") else: old_goods= Goods(ret.name,ret.num-g_num,ret.cin,ret.cout) self.go.remove(ret) self.go.append(old_goods) gret = self.checkjs(goods_name) if gret == None: shop_goods = gGoods(ret.name,g_num,ret.cin*g_num,ret.cout*g_num) self.js.append(shop_goods) else: shop_goods = gGoods(gret.name,g_num+gret.gnum,gret.gcin+ret.cin*g_num,gret.gcout+ret.cout*g_num) self.js.remove(gret) self.js.append(shop_goods) print("卖出后:",end=' ') old_goods= Goods(ret.name,ret.num-g_num,ret.cin*g_num,ret.cout*g_num) print(old_goods) else: print("小可爱,没有此商品!") #汇总当天卖出商品,包括每种销售商品名称、数量、进货总价、销售总价等。 def Summary(self): for goods in self.js: print (str(goods)) print("售出的物品进货总价:",end="") x=0 for goods in self.js: x+=float(goods.gcin) print(x) print("售出的物品销售总价:",end="") y=0 for goods in self.js: y+=float(goods.gcout) print(y) print("利润:",y-x);```
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