python作业

# coding = utf-8#
black_name = open("black_name.txt", "w")
account = open("account.txt", "w")
account_NAME = open("account_name.txt", "w")
def string_check(filenumber, string):
   if filenumber == 1:
       temp_file = open("black_name.txt", "r")
   elif filenumber == 2:
       temp_file = open("account.txt", "r")
   else:
       temp_file = open("account_name.txt", "r")
   temp_file_content = temp_file.readline()
   temp_file_content = temp_file_content.strip('\n')
   while len(temp_file_content):
       if temp_file_content == string:
           return 1
       else:
           temp_file_content = temp_file.readline()
           temp_file_content = temp_file_content.strip('\n')
   return 0
def logo_in():
   temp_account_name = input("请输入您的账户：")
   black_name = open("black_name.txt", "r")
   print("测试" + str(string_check(1, temp_account_name)))
   if string_check(1, temp_account_name) == 1:
       print("请联系管理员")
       return
   try_time = 3
   account = open("account.txt", "r")
   while try_time:
       temp_account_password = input("请输入您的账户密码：" + "剩余次数" + str(try_time))
       temp_account = temp_account_name + " " + temp_account_password
       if string_check(2,temp_account) == 1:
           print("登录成功")
           return
       else:
           try_time -= 1
   black_name = open("black_name.txt", "a")
   black_name.writelines(temp_account_name + '\n')
   black_name.close()
   print("请联系管理员！")
def regist():
   account_NAME = open("account_name.txt", "r")
   print("---------注册---------")
   account_name = input("请输入您的用户名:")
   while True:
       ACCOUNT_NAME_ACCESS = 1
       if string_check(3, account_name) == 1:
           account_name = input("用户名已被占用:")
           ACCOUNT_NAME_ACCESS = 0
       if ACCOUNT_NAME_ACCESS == 1:
           break
   account_NAME = open("account_name.txt", "a")
   account_NAME.writelines(account_name + '\n')
   account_NAME.close()
   print("账号可用！！")
   while True:
       account_password = input("请输入您的密码:")
       if account_password.isalnum() == False:
           while True:
               account_password = input("密码只能包含数字和大小写字母，请再次输入:")
               if account_password.isalnum() == True:
                   break
       account_password_temp = input("请再一次输入您的密码:")
       if account_password != account_password_temp:
           print("密码不一致！")
       else:
           break
   personal_account = [account_name + " " + account_password + '\n']
   account = open("account.txt", "a")
   account.writelines(personal_account)
   account.close()
   print("注册成功！！")
def main():
   while True:
       content = input("""
******************************
   操作编码  操作
   【0】      注册
   【1】      登录
******************************
       """)
       if (content == "0"):
           regist()
       elif (content == "1"):
           logo_in()
       else:
           content = input("出错了，请重新输入:")
main()