```python def register_user(username, password): """ Registers a new user. Args: username (str): The username of the new user. password (str): The password of the new user. Raises: ValueError: If the username is already taken. """ Check if the username is already taken if username in users: raise ValueError("Username already taken") Create a new user object user = User(username, password) Add the new user to the list of users users.append(user) ``` J影音a: ```j影音a public void registerUser(String username, String password) { // Check if the username is already taken if (users.containsKey(username)) { throw new IllegalArgumentException("Username already taken"); } // Create a new user object User user = new User(username, password); // Add the new user to the map of users users.put(username, user); } ``` C: ```csharp public void RegisterUser(string username, string password) { // Check if the username is already taken if (users.ContainsKey(username)) { throw new ArgumentException("Username already taken"); } // Create a new user object User user = new User(username, password); // Add the new user to the dictionary of users users.Add(username, user); } ``` PHP: ```php public function registerUser(string $username, string $password) { // Check if the username is already taken if (isset($this->users[$username])) { throw new Exception("Username already taken"); } // Create a new user object $user = new User($username, $password); // Add the new user to the array of users $this->users[$username] = $user; } ```
打开小米商店应用,搜索“小米云”,点击下载。 谷歌 Play 商店:打开谷歌 Play 商店应用,搜索“小米云”,点击下载。 iOS 设备 App Store:打开 App Store 应用,搜索“小米云”,点击下载。 其他平台 PC 端:访问小米云官网:https://account.xiaomi/pass/serviceLogin?callback=https%3A%2F%2Fmi%2F&serviceParam%3D%7B%22check_https%22%3Atrue%7D,点击“下载 PC 客户端”。 Windows Store:打开 Windows Store 应用,搜索“小米云”,点击下载。 Mac App Store:打开 Mac App Store 应用,搜索“小米云”,点击下载。 注意: 确保您下载的是官方的小米云应用,以避免安全风险。