# csvIO
登入登出系統從來都沒那麼輕鬆過
# User Management System
[](#中文版)
## Features
- **Password Encryption**: Encrypts passwords using the SHA-256 algorithm.
- **User Registration**: Allows new users to register. Registration fails if the username already exists.
- **User Login**: Verifies if the username and password are a match.
- **Password Retrieval**: Provides a username and retrieves the corresponding encrypted password.
## Usage
1. **Password Encryption**:
```python
encrypted_password = crypto("your_password")
```
2. **User Registration**:
```python
success = register("path_to_your_csv.csv", "username", "password")
```
3. **User Login**:
```python
is_logged_in = login("path_to_your_csv.csv", "username", "password")
```
4. **Password Retrieval**:
```python
password = get_password("path_to_your_csv.csv", "username")
```
## Installation Requirements
This module requires Python 3.6 or higher. Using the following command to get the module
```fix
pip install git+https://github.com/tudohuang/csvIO.git
```
```python
import csvIO
encrypted_password = csvIO.crypto("your_password")
success = csvIO.register("path_to_your_csv.csv", "username", "password")
is_logged_in = csvIO.login("path_to_your_csv.csv", "username", "password")
password = csvIO.get_password("path_to_your_csv.csv", "username")
```
## 中文版
# 用戶管理系統
## 功能說明
- **密碼加密**：使用 SHA-256 演算法對密碼進行加密。
- **用戶註冊**：允許新用戶註冊。若用戶名已存在，則註冊失敗。
- **用戶登入**：驗證用戶名與密碼是否匹配。
- **查詢密碼**：提供一個用戶名，查詢並返回對應的加密密碼。
## 使用方法
1. **密碼加密**：
```python
encrypted_password = crypto("your_password")
```
2. **用戶註冊**：
```python
success = register("path_to_your_csv.csv", "username", "password")
```
3. **用戶登入**：
```python
is_logged_in = login("path_to_your_csv.csv", "username", "password")
```
4. **查詢密碼**：
```python
password = get_password("path_to_your_csv.csv", "username")
```
## 安裝需求
本模組需要 Python 3.6 或更高版本。依賴的外部庫包括：
- `csv`：用於讀取和寫入 CSV 文件。
- `hashlib`：用於進行 SHA-256 密碼加密。
- `os`：用於檢查文件是否存在。
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