When you open a file using vim, Swap file & quot;. nginx. conf. swp & quot; already exists always appears!

Using vim to open a file, Swap file ". nginx. conf. swp" already exists always appears!
Fault: When you use vim to edit the nginx configuration file, the swp file always exists: When you use vim to edit a file, a swp file is generated. FILENAME. swp will automatically delete the file after normal editing and exit. If you accidentally delete the original file, you can use vim-r FILENAME, is to use the swp file to restore the original file (the premise is that the system is not restarted, the file will also disappear after the system is restarted, there are two reasons for this problem when using vim to open a file: 1. in this case, the file has been opened and can be opened in read-only mode. it is because of the existence of the swp file, which may be caused by the crash of the last edit. FILENAME. swp can delete the file (ensure that the file is not used for restoration)