1 #用来存储名片的列表  2 card_infors = []  3   4   5   6 def print_menu():  7     #1. 打印功能提示  8     print("="*50)  9     print(" 名片管理系统") 10     print("1. 增加一个新名片") 11     print("2. 删除一个名称") 12     print("3. 修改一个名片") 13     print("4. 查询一个名片") 14     print("5. 显示所有名片") 15     print("6. 退出系统") 16     print("="*50) 17  18  19 def add_new_card_infor(): 20         """完成文档输入：""" 21         new_name = input("请输入新的名字：") 22         new_qq = input("请输入新的QQ：") 23         new_weixin = input("请输入新的微信：") 24         new_addr = input("请输入地址：") 25  26         # 定义一个新的字典，用来存储新的名片 27         new_infor = {} 28         new_infor['name'] = new_name 29         new_infor['qq'] = new_qq 30         new_infor["weixin"] = new_weixin 31         new_infor['addr'] = new_addr 32         global card_infors 33         card_infors.append(new_infor) 34  35  36 def find_card_infor(): 37         find_name = input("请输入要查找的姓名：") 38  39         find_flag = 0   # 默认没有找到 40  41         global card_infors 42         for temp in card_infors: 43             if find_name == temp["name"]: 44                print("%s\t%s\t%s\t%s"%(temp['name'],temp['qq'],temp['weixin'],temp['addr'])) 45                find_flag=1 46                break 47         if find_flag == 0: 48             print("查无此人") 49  50 def show_all_infor(): 51         """显示所有信息""" 52         print("姓名\tQQ\t微信\t住址") 53         global card_infors 54         for temp in card_infors: 55             # print(temp) 56             print("%s\t%s\t%s\t%s"%(temp['name'],temp['qq'],temp['weixin'],temp['addr'])) 57  58  59 def del_card_infor(): 60         del_name = input("请输入要查找的姓名：") 61         find_flag = 0   # 默认没找到 62          63         global card_infors 64         for temp in card_infors: 65             if del_name == temp["name"]: 66                 card_infors.remove(temp) 67                 find_flag = 1 68                 show_all_infor() 69                 break 70         if find_flag == 0: 71             print("查无此人") 72                  73  74 def del_modify_infor(): 75         modify_name = input("请输入要修改信息的名称：") 76         find_flag = 0 77  78         global card_infors 79         for temp in card_infors: 80             if modify_name == temp["name"]: 81                 modify_content = input("请输入要修改的信息，如name，qq，weixin，addr等：") 82                 for name in temp.keys(): 83                     print("+"*50) 84                     print(temp.keys()) 85                     print("+"*50) 86                     print(name) 87                     if modify_content == name: 88                         modify_value = input("请输入要修改的值：") 89                         temp[name] = modify_value 90                         show_all_infor() 91                         find_flag = 1 92                         break 93                      94         if find_flag == 0: 95             print("查无此人")           96  97  98  99 100 def main():101         """完成对整个程序得控制"""102     103         print_menu()104         while True:105             #2. 获取用户的输入106             num = int(input("请输入操作序号："))107 108             #3. 根据用户的数据执行相应的功能：109             if num == 1:110                 add_new_card_infor()111             elif num == 2:112                 del_card_infor()113             elif num == 3:114                 del_modify_infor()115             elif num == 4:116                 find_card_infor()117             elif num == 5:118                 show_all_infor()119             elif num == 6:120                 break121             else:122                 print("输入有误，请重新输入：")123  124 125 126 # 调用主函数127 main()