Video: https://www.bilibili.com/video/BV1WV411e7V9/
Download and unzip it.Then, start "index.html" to play. Or, you can play online if you don't mind its slowness. URL: https://wifi-left.github.io/DanceString/index.html
Chinese (Simplified)
If you have problems about it, please email me at ysy1679682327@outlook.com. Thanks.