day_1_登录接口

#/usr/bin/env python3
# -*- coding: utf-8 -*-
##This is an account login authentication
##Version 1.0
## # Created At 2016-4-11
##Author He Wei
'''
Logindauth.txt  ##验证帐号
aaaaa 123456
user passwd
Loginfailed.txt ##登录失败录入
bbbbb
ccccc
user
Blacklist.txt ##黑名单
hhhhhhh
dddddd
user
'''
import sys
Logindauth_file = "Logindauth.txt"
Loginfailed_file = "Loginfailed.txt"
Blacklist_file = "Blacklist.txt"

#Name = input("请输入用户名:")
#Passwd = (input("请输入密码:"))
##检查黑名单

##认证帐号
user_county = True
while user_county == True :
    Name = input("请输入用户名:")
    Passwd = (input("请输入密码:"))
    if len(Name) == 0:
        print("帐号不能为空")
        continue
    with open(Blacklist_file,"r") as f:
        lines = []
        for line in f.readlines():
            lines.append(line.strip())
        if lines.count(Name) != 0:
            print("该帐号已被锁定,\n请联系管理员解除")
            sys.exit()
    with open(Logindauth_file,"r") as d:
        for line in d.readlines():
            user,pawd = line.strip().split()  ##以空格为分割符将一行类容分成2份,分别为帐号和密码
            if Name == user and Passwd == pawd:
                print("欢迎登录XX系统")
                #user_county == False
                #break
                sys.exit()
            #else:
    print(user,pawd)
    print("帐号或密码错误，请重新输入 \n输错三次将被锁定")
    with open(Loginfailed_file,"a") as t :   ##将登录失败帐号写入文本中
        t.write(Name)
        t.write("\n")
        with open(Loginfailed_file,"r") as tt: ##检测文本账户是否超过三次
            number_cs = [None]
            for number in tt.readlines():
                number_cs.append(number.strip())
                if  number_cs.count(Name) >= 3:
                    with open(Blacklist_file,"a") as f:
                        f.write(Name)
                        f.write("\n")
                        sys.exit()
                else:
                    break  ##不满足3次,结束for循环,重新进行新一轮用户验证
    #if user_county == False:
        #print("进入登录界面")
才开始接触py，其他功能在以后慢慢完善，有错误的地方，请各位及时提出，谢谢~