Find your favorite square dance on the video website, such as Youku and Tudou. After clicking, there is a download button at the bottom of the video playback page. Just install the download plug-in of the corresponding website and you can download it. It's just more troublesome. Different video websites need to install different plug-ins.
Now just install a download tool named Tang Wei, which can be used on all video websites. After installation, right-click on the play page and select "Download with Tang Wei", which is very convenient.