I have been exploring for half a day and now I have provided a method.
PhpcProgramTransfer to another server
1. Back up the program in the old space and download it to the local device.
2. Back up the old space website database (the backup data is under data/bakup/) and download it to your local device.
3. Download the "php CMS program" (the same version as the old space program during installation), upload it to the new server, and reinstall it.
4. Upload the "backup program in the old space" to the new server (covering the CMS program of the newly installed PHP)
5. Modify the congfig File
6. Import the backup data to the database (upload to data/bakup)
7. Update cache and complete transfer
Tip: Because good space supports compression and decompression, both the backup program and the new program use compression and upload, and then use the management tool to decompress