电脑怎么设置锁屏

To set up a screen lock on your computer, you can follow these general steps:

1. For Windows:
- Press the Windows key + I to open Settings.
- Go to Accounts > Sign-in options.
- Under the "Require sign-in" section, select the desired time for when the screen should lock.
- You can also set up a password, PIN, or Windows Hello to unlock the screen.

2. For Mac:
- Click on the Apple menu and select System Preferences.
- Go to Security & Privacy.
- Click on the General tab.
- Check the box next to "Require password [immediately/after a certain time] after sleep or screen saver begins."

3. For Linux (Ubuntu):
- Go to Settings.
- Click on Privacy.
- Under the Screen Lock section, you can set the screen lock preferences.

These are general steps, and the exact process may vary depending on your operating system version.