作业练习 名片管理系统

# 1打印功能提示
print('=' * 50)
print('名字关系系统 V2.0')
print('1:添加一个新的名片')
print('2:删除一个名片')
print('3:修改一个名片')
print('4:查询一个名片')
print('5:显示所有的名片')
print('6:退出系统')
print('=' * 50)

# 用来存储名片
card_infors = []

while True:
    # 2获取用户选择
    num = input('请输入操作序号:')
    if num.isdigit():
        num = int(num)
        if num == 1:
            new_name = input('请输入名字：')
            new_qq = input('请输入QQ：')
            new_weixin = input('请输入微信：')
            new_addr = input('请输入新的住址：')

            # 定义一个新的字典，用来存储一个新的名片
            new_infor = {}
            new_infor['name'] = new_name
            new_infor['qq'] = new_qq
            new_infor['weixin'] = new_weixin
            new_infor['addr'] = new_addr

            # 将一个字典，添加到列表中
            card_infors.append(new_infor)
            #print(card_infors)  # for test
        elif num == 2:
            del_name = input("请输入要删除的名字：")
            find_flag = False
            for line in card_infors:
                if line['name'] == del_name:
                    find_flag = True
                    card_infors.remove(line)
                    break
            if find_flag:
                print("已删除！")
            else:
                print("输入的用户名不存在")
                # print(card_infors)   for test
        elif num == 3:
            old_name = input('请输入要修改的姓名：')
            flag = 0
            for line in card_infors:
                if line['name'] == old_name:
                    new_name = input('姓名:')
                    new_qq = input('年龄:')
                    new_weixin = input('微信:')
                    new_addr = input('住址:')

                    line['name'] = new_name
                    line['qq'] = new_qq
                    line['weixin'] = new_weixin
                    line['addr'] = new_addr
                    flag = True
                    break
            if flag:
                print("已修改！")
            else:
                print('输入的用户不存在！')
        elif num == 4:
            find_nmae = input("请输入要查找的姓名：")

            find_flag = 0  # 默认表示没有找到

            for temp in card_infors:
                if find_nmae == temp['name']:
                    print('%s\t%s\t%s\t%s' % (temp['name'], temp['qq'], temp['weixin'], temp['addr']))
                    find_flag = 1  # 表示找到了
                    break

            # 判断是否找到
            if find_flag == 0:
                print('没有找到')

        elif num == 5:
            print("姓名\tQQ\t微信\t住址\t")
            for temp in card_infors:
                print('%s\t%s\t%s\t%s\t' % (temp['name'], temp['qq'], temp['weixin'], temp['addr']))
        elif num == 6:
            break
        else:
            print('输入有误！请重新输入')
            continue
        print('')
    else:
        print("输入错误，请重新输入！")