To lock, hover over the Settings icon in the tab bar and choose "Lock Telegram" or use ⌘ + L. Note: if you forget your local passcode, you'll need to log out of Telegram for macOS and log in again. 要锁定，请将鼠标悬停在选项卡栏中的“设置”图标上，然后选择“锁定Telegram”或使用⌘+L键锁定。 注意：如果您遗忘了本地密码，则需要注销Telegram for macOS，然后重新登录。