1. The video in the live broadcast cannot be downloaded directly, and recording software is needed to record it. Take the Apple 7 mobile phone as an example. First, you should open the "Settings" on the mobile phone.

2. After opening, click "Control Center" in the options list.

3. Click "Custom Control" in this interface.

4. Click Screen Recording to add it to the control center.

5. After the addition is successful, when watching the live broadcast, you can slide the phone up to open the control center and click the Add Record button.

6. So you can start recording live video. When recording, there will be a prompt "Recording" at the top of the screen.

7. To end the recording, you can click "Recording" and then click "Stop" in the pop-up box.

8. After stopping, the recorded video will be saved in "Photos" of the mobile phone.