Python入門記錄7

import os
import pickle
# 查看地址
print(id(0),id('0'),id(int('0')),id(str(0)))
a = str(0)
print(a)
b = '0'
print(b)
print(a==b)#true
print(id(a),id(b))
print(id(a)==id(b))#false

# 名片關係系統
# 添加名片
# 刪除名片
# 修改名片
# 查詢名片
# 顯示所有
# 退出
# 字段：名字、qq號、微信、地址
class info():
    def __init__(self,name,qq,wechat,add):
        self.name = name
        self.qq = qq
        self.wechat = wechat
        self.add = add

infoLst = []
if os.path.exists('info.txt'):
    with open('info.txt', 'rb') as file:
        infoLst = pickle.load(file)
while True:
    print('名片關係系統')
    print('1.添加名片')
    print('2.刪除名片')
    print('3.修改名片')
    print('4.查詢名片')
    print('5.顯示所有')
    print('6.退出系統')
    select = input('請輸入')
    choiseLst = ['1','2','3','4','5','6']
    if select not in choiseLst:
        print('輸入錯誤，請重新輸入')
        continue
    if select == '6':
        with open('info.txt','wb') as file:
            pickle.dump(infoLst,file)
        '謝謝使用'
        exit()
    if select == '1':
        name = input('請輸入姓名')
        qq = input('請輸入qq號')
        wechat = input('請輸入微信號')
        add = input('請輸入地址')
        infoLst.append(info(name,qq,wechat,add))
    elif select == '2':
        name = input('請輸入刪除姓名')
        flag = True
        for temp in infoLst:
            if(temp.name == name):
                infoLst.remove(temp)
                print('刪除成功')
                flag = False
                break
        if flag:
            print('查無此人')
    elif select == '3':
        name = input('請輸入修改姓名')
        flag = True
        for temp in infoLst:
            if(temp.name == name):
                temp.name = input('原姓名：%s，請修改'%temp.name)
                temp.qq = input('原qq：%s，請修改'%temp.qq)
                temp.wechat = input('原微信：%s，請修改'%temp.wechat)
                temp.add = input('原地址：%s，請修改'%temp.wechat)
                flag = False
                print('修改成功')
                break
        if flag:print('查無此人')
    elif select == '4':
        name = input('請輸入查詢姓名')
        flag = True
        for temp in infoLst:
            if(temp.name == name):
                print('姓名\tqq\t微信\t地址')
                print('%s\t%s\t%s\t%s'%(temp.name,temp.qq,temp.wechat,temp.add))
                flag = False
                break
        if flag:
            print('查無此人')
    elif select == '5':
        print('姓名\tqq\t微信\t地址')
        for temp in infoLst:
            print('%s\t%s\t%s\t%s' % (temp.name, temp.qq, temp.wechat, temp.add))