1. First, you need to open the Tik Tok app on the desktop and go to the home page.

2. After entering the interface, you need to click the white plus key at the bottom of the middle to start creating short videos.

3. Then, you can shoot the video here, or click on the local photo album at the lower right to upload the video. Here, you can shoot a short video at will to demonstrate.

4. After selecting the video, there will be a small rotating window prompt in the lower right corner. Clicking on the video will change from portrait screen to landscape screen, and then you can upload the landscape video.