演示

代码

#-*- coding:utf-8 -*-
print('记录用户登录日志----------------------------')
import time
def show_info():
    print('输入提示数字,执行相应操作:0退出,1查看登录日志')
def write_logininfo(username):#----------记录日志
    with open('log.txt','a',encoding='utf-8')as file:#---把登录时间写进文件
        s=f'用户名{username},登录时间:{time.strftime("%Y-%m-%d %H:%M:%S",time.localtime(time.time()))}'#---格式化时间
        file.write(s+'\n')
def read_logininfo(username):#######好象参数没用到
    with open('log.txt','r',encoding='utf-8')as file:
        while True:
            line=file.readline()
            if line=='':
                break
            else:
                print(line,end='')
if __name__ == '__main__':
    username=input('请输入用户名:')
    pwd=input('请输入密码:')
    if username=='admin' and pwd=='admin':
        print('登录成功!!!!')
        write_logininfo(username)#-----记录日志
        show_info()#-----显示提示信息
        while True:
            num=input('输入操作代码0/1:')
            if num=='0':
                print('退出成功')
                break
            elif num=='1':
                print('查看登录信息')
                read_logininfo(username)
                continue
            else:
                print('您输入的数据有误!!')
                show_info()
                continue
    else:
        print('用户名或密码不正确')


    '''print(time.time())#-----------获得秒
    print(time.localtime(time.time()))#-----转换成tm_year=2021, tm_mon=11, tm_mday=23, tm_hour=13, tm_min=43, tm_sec=51, tm_wday=1, tm_yday=327, tm_isdst=0
    print(time.strftime("%Y-%m-%d %H:%M:%S",time.localtime(time.time())))#-----转换成2021-11-23 13:49:18格式'''