(I have heard all the courses myself, and I have a clear idea. It is a series from beginner to master. It is worth downloading gradually. Note that some files are too large, so they will be split into multiple files for uploading. Only when all the files are downloaded, can the decompression be successful! Since each file can only upload the upper limit of 50M, it will be updated continuously
day02_. Variable_ Up.avi
.....)