python面向对象实现名片管理系统文件版

import osdef print_menu(): print("*"*50) print("  名片管理系统") print("  1.添加一个新名片") print("  2.删除一个名片信息") print("  3.修改一个名片信息") print("  4.查找一个名片信息") print("  5.显示添加过的名片信息") print("  6.保存添加的名片信息") print("  7.退出系统") print("*"*50)card_infor = []def add_new_card_infor(): new_name = input("请输入要添加的名字：") new_qq = input("请输入Qq:") new_weixin = input("请输入微信号：") new_position = input("请输入工作职位") new_addr = input("请输入工作地址") """创建一个字典来存放添加的内容""" new_infor = {} new_infor['name'] = new_name new_infor['qq'] = new_qq new_infor['weixin'] = new_weixin new_infor['position'] = new_position new_infor['addr'] = new_addr """将字典刚入一个列表中""" global card_infor card_infor.append(new_infor)def del_card_infor(): del_name =input("请输入要删除的名片") global card_infor for temp in card_infor:  if del_name == temp['name']:   print("删除的名片如下")   card_infor.remove(temp)   print("%s/t/t%s/t/t%s/t/t%s/t/t%s"%(temp['name'],temp['qq'],temp['weixin'],temp['position'],temp['addr']))  else:   print("不存在")   return del_card_infor()def change_care_infor(): change_name_card = input("请输入需要修改的名片名字") global card_infor for temp in card_infor:  if change_name_card == temp['name']:   new_name = input("请输入要修改的名字")   new_qq = input("请输入要修改的qq")   new_weixin = input("请输入要修改的微信")   new_position = input("请输入要修改的职业")   new_addr = input("请输入要修改的地址")   temp['name'] = new_name   temp['qq'] = new_qq   temp['weixin'] = new_weixin   temp['position'] = new_position   temp['addr'] = new_addr   print("修改成功")   break  else:   print("您要修改的名片不存在")def find_card_infor(): global card_infor find_name = input("请输入要在查找的内容/n") find = 0 for temp in card_infor:  if find_name == temp['name']:   print("查询成功/n")   print("%s/t/t%s/t/t%s/t/t%s/t/t%s"%(temp['name'],temp['qq'],temp['weixin'],temp['position'],temp['addr']))   find = 1   break  else:   print("您要查询的名片不存在，请重新输入")   return find_card_infor()def display_card_infor(): global card_infor print("姓名/t/tQQ/t/t微信/t/t工作/t/t住址") for temp in card_infor:  print("%s/t/t%s/t/t%s/t/t%s/t/t%s"%(temp['name'],temp['qq'],temp['weixin'],temp['position'],temp['addr']))def save_card_infor(): global card_infor f = open("save_card.data","w") f.write(str(card_infor)) f.close()def load_card_infor(): """恢复保存的信息""" global card_infor try:  f = open('save_card.data')  card_infor = eval(f.read())  f.close() except Exception:  passdef main(): load_card_infor() """把恢复保存的信息加载到程序中""" print_menu() """加载首页操作页面""" while True:  num = int(input("请输入你要选择的功能序号"))  if(num==1):   add_new_card_infor()  elif(num==2):   del_card_infor()  elif(num==3):   change_care_infor()  elif(num==4):   find_card_infor()  elif(num==5):   display_card_infor()  elif(num==6):   save_card_infor()  elif(num==7):   break  else:   print("输入有误，请重新输入")  print()if __name__ == "__main__": main()