老男孩python3学习，课堂作业1.1 登录接口

刚接触python的小白，学习的python3.

编写：登录接口，认证成功显示欢迎信息，输入错误3次锁定账户:

# Version: python3.6
# Author: Gao

# 登录接口，认证成功显示欢迎信息，输入错误3次锁定账户

f = open("work2.txt", 'r')
count_f = f.readlines()            # 读取ork2.txt这个文档存放的账户信息内容，readlines自动将文件内容分析成一个行的列表
f.close()
all_name = []                      # 初始用户name列表
all_pass = []
for i in range(0, len(count_f)):   # 循环count_f中元素个数
    count = count_f[i].split()      # split拆分字符串
    one_name = count[0]             # 获取帐号name
    one_pass = count[1]             # 获取帐号password
    all_name.append(one_name)       # 放入name列表
    all_pass.append(one_pass)
#print(all_name)
# print(all_pass)
count = 0
while count < 3:                    # 密码错误超过3次账户被锁定，while循环三次
    input_name = input("please input you name :").strip()
    input_pass = input("please input you password :")
    name_Blacklist = input_name + "_Blacklist" # 黑名单账户
    if input_name not in all_name:    # 账户错误执行
        print("Sorry，Account does not exist,Please enter again")
        count = 0
        continue
    elif name_Blacklist in all_name:   # 账户在黑名单执行
        print("Your has been locked,Please contact the administrator")
        break
    elif input_name in all_name:        # 账户正确执行
        username_index = all_name.index(input_name) # 索引出输入账户在账户列表里的位置
        password_index = all_pass[username_index]   # 获取该账户在password列表里的值
#        print(password_index)
        if password_index == input_pass:      # 判断password是否正确
            print("Welcome user:{0} interview!!".format(input_name))
            break
        else:
            print("Password error,Please enter again")
            count += 1
    if count == 3:                        # 错误3次进入黑名单
        print("You enter more than,Blacklist!")
        f_w = open("work2.txt", 'a')
        f_w.write("\n"+input_name+"_Blacklist"+" "+"1111")
        f_w.close()
        break