Method 2: Some videos can't be found directly in the source code. They call the video address in JS code through the player. In this case, it is necessary to find the called JS code, and the address of the video file can be searched in the JS code.
Method 3: In another case, the page is embedded in another video playing page, and you need to find the source code of another page and search for the video address in it.
In short, we should analyze where the video address is hidden according to the actual situation, and download it when it is found.