Python仓库管理系统
运维@小兵 人气:0注意:在Linux环境运行
代码
#!/usr/bin/env python # -*- coding:utf-8 -*- # @FileName :store_system.py # @Time :2020/3/3 23:10 # @Author :anqixiang # @Function :模拟仓库管理系统 ''' 1.商品清单保存在/opt/shop_info.txt文件中 2.可以查看、增加、删除商品和修改商品价格 3.在任何位置输入b返回上级菜单,输入q退出 ''' import os from subprocess import run #输出颜色 def cecho(num,content): print('\033[%sm%s\033[0m' %(num, content)) #选b返回上一层,选q退出 def choice_action(action): while action != "b": if action == "q": exit(0) else: break return action #展示商品 def view_shop(file_name): commodity = [] #所有商品保存到该列表 if not os.path.isfile(file_name): os.mknod(file_name) else: with open(file_name, 'r') as file: for each in file: commodity.append(each.splitlines()) if len(commodity) == 0: cecho(35, "货仓空空如也,请速速添加商品!") #打印商品信息 else: print('%-10s%-8s%-12s' % ('序号', '名字', '价格')) for index, value in enumerate(commodity): alist = value[0].split(":") #把字符串转成列表,以“:”分割 print('%-12s%-10s%-8s' % (index + 1, alist[0], alist[1])) return commodity #增加商品,每增加一个就保存到文件 def add_shop(file_name): while True: add_dict = {} shop_name = input(">>>输入商品名:").strip() if choice_action(shop_name) == "b": break shop_price = input(">>>输入商品价格(元):").strip() if choice_action(shop_price) == "b": break elif shop_price.isdigit(): add_dict[shop_name] = shop_price #商品名作key,价格作值,存入字典 for i in add_dict: with open(file_name, 'a+')as file: file.write('%s:%s\n' % (i, add_dict[i])) print("\033[92m%s存入成功\033[0m" % shop_name) view_shop(file_name) else: cecho(31, "Invalid Option") #删除商品 def del_shop(file_name): menu_info = "商品清单" print(menu_info.center(26,'-')) commodity = view_shop(file_name) while True: del_num = input(">>>商品序号:").strip() if choice_action(del_num) == "b": break elif del_num.isdigit(): del_num = int(del_num) rc = run("sed -i '/%s/d' %s" % (commodity[del_num-1][0], file_name), shell=True) if not rc.returncode: cecho(92, "删除成功") else: cecho(31,"删除失败") view_shop(file_name) else: cecho(31, "Invalid Option") #修改商品价格 def update_price(file_name): menu_info = "商品清单" print(menu_info.center(26,'-')) commodity = view_shop(file_name) while True: update_num = input(">>>商品序号:").strip() if choice_action(update_num) == "b": break elif update_num.isdigit(): update_num = int(update_num) else: cecho(31, "Invalid Option") new_price = input(">>>新的价格(元):").strip() if choice_action(new_price) == "b": break elif new_price.isdigit(): new_price = int(new_price) alist = commodity[update_num-1][0].split(':') #将商品名和价格转成一个列表,如['coffee', '30'] alist[1] = new_price #修改价格 rc = run("sed -i '/%s/c %s:%s' %s" % (alist[0], alist[0], alist[1], file_name), shell=True) if not rc.returncode: cecho(92, "修改成功") else: cecho(31,"修改失败") view_shop(file_name) else: cecho(31, "Invalid Option") #主程序 def show_menu(): cmds = {'0': view_shop, '1': add_shop, '2': del_shop, '3': update_price} prompt = '''(0)查看商品信息 (1)增加商品 (2)删除商品 (3)修改商品价格 (b)返回上级菜单 (q)退出 输入(0/1/2/3/b/q):''' fname='/opt/shop_info.txt' #保存商品信息 while True: choice = input(prompt).strip() if choice not in '0123bq': cecho(31, "Invalid Option") elif choice_action(choice) == "b": cecho(31, "已经是第一级菜单") else: cmds[choice](fname) if __name__ == "__main__": try: show_menu() except KeyboardInterrupt as e: print() cecho(31, "非正常退出,请下次输入字母q进行退出!")
效果图
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