1. Videos during live broadcast cannot be downloaded directly. Recording software is required for recording. Taking the iPhone 7 mobile phone as an example, you must first open the "Settings" on the mobile phone.

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

3. Then click "Customize Control" in the 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 up the phone to open the control center and click the added recording button.

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

7. If you want 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 the "Photos" of the phone.