Compress all winter vacation homework into a RAR compressed file, and then send it to the school mailbox via QQ email.
First put all the winter vacation homework into a folder, then right-click with the mouse, select Add to compressed file, and then save to the desktop, then open the QQ mailbox, enter the school mailbox, and add Upload the file you just compressed and click Send.
RAR is a patented file format used for data compression and archiving. In computer science, RAR is a proprietary patented compression format for file compression and archiving. RAR's name comes from its author Eugene Roshal, which is the abbreviation of RoshalARchive. Eugene Roshal originally wrote the DOS version of the encoding and decoding program, and later ported it to many platforms, such as the more famous WinRAR on the Windows platform. Eugene Roshal conditionally disclosed the source code of the decoding program, but the encoding program remains private.