名片管理系统---简单版

先写一个名片管理系统简单版，后续改进
#!/usr/bin/env python3
# -*- conding:utf-8 -*-
# @Time: 2017/12/15 12:27
# @Author:Luke
# 名片系统。。持续开发中。。。还有函数，模块等=没加进来，预先演练
cardSys = [{"name":"张三","telephone":"15892233331","QQ":"12345","email":"12345@qq.com"},
           {"name":"刘美","telephone":"15892244441","QQ":"23456","email":"23456@qq.com"},
           {"name":"李四","telephone":"15892255551","QQ":"34567","email":"34567@qq.com"},
           {"name":"王五","telephone":"15892266661","QQ":"45678","email":"45678@qq.com"}]

digit = -1
while digit!=0:
    print("*" * 30)
    print("欢迎使用【名片管理系统】v1.0".center(10))
    print("1.新建名片".center(10))
    print("2.显示全部".center(10))
    print("3.查询名片".center(10))
    print("0.退出系统".center(10))
    print("*" * 30)
    digit = input("请选择操作的功能：")
    if digit != 0 or digit != 1 or digit != 2 or digit != 3:
        print("您输入的有误！")
        break
    elif int(digit) == 1:
        print("新建名片中。。。")
        name = input("请输入姓名：")
        telephone = input("请输入电话：")
        QQ = input("请输入QQ：")
        email = input("请输入电子邮箱：")
        cardSys.append({"name":name,"telephone":telephone,"QQ":QQ,"email":email})
        print(cardSys)
    elif int(digit) == 2:
        print("显示所有名片：")
        print("姓名         电话         QQ          邮箱")
        for k in cardSys:
            for name in k:
                print("%s"% k[name],end="    ")
            print("")
    elif int(digit) ==3:
        print("查询名片。。。")
        findName = input("请输入姓名：")
        for xm in cardSys:
            if findName in xm["name"]:
                print("找到了%s,名片如下："%findName)
                print(xm)
                break
        else:
            print("没有找到 %s" % findName)
    elif int(digit) ==0:
        break