# -*- coding: utf-8 -*-
from os.path import isfile
class user:
def __init__(self, username, passwd, file_info):
self.user = username
self.pwd = passwd
self.file_db = file_info
def file_oper(file, mode, *args):
if mode == 'a+':
data = args[0]
with open(file, mode) as f:
f.write(data)
elif mode == 'r':
with open(file, mode) as f:
data = f.read()
return data
# 該部分要求實現註冊功能，要異常捕獲實現註冊成功，出錯，及使用者名稱已存在提示
def regist(self):
list_user =
if isfile(self.file_db):
with open(self.file_db, 'r') as f:
for line in f:
username = line.strip().split(':')[0]
if self.user not in list_user:
try:
with open(self.file_db, 'a+') as f:
user_info = '%s:%s\n' %(self.user, self.pwd)
f.write(user_info)
print('\033[32;1m註冊成功。\033[0m')
except exception as e:
print('error: ', e)
else:
print('\033[31;1m該使用者已存在.\033[0m')
def login(self):
list_user =
u_list = '%s:%s' %(self.user, self.pwd)
with open(self.file_db, 'r') as f:
for line in f:
if u_list in list_user:
print('\033[32;1m登入成功.\033[0m')
else:
print('\033[31;1m使用者名稱或密碼錯誤.\033[0m')
def start():
while true:
print('1. 註冊\n'
'2. 登入\n'
'3. 退出')
choice = input('>>>').strip()
if choice.isdigit() and 0 < int(choice) < 4:
if choice == '1':
username = input('使用者名稱:').strip()
passwd = input('密碼:').strip()
user = user(username, passwd, 'user.db')
user.regist()
elif choice == '2':
username = input('使用者名稱:').strip()
passwd = input('密碼:').strip()
user = user(username, passwd, 'user.db')
user.login()
elif choice == '3':
break
else:
print('輸入錯誤.')
if __name__ == '__main__':
start()
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