Various investigations: 1. Has the code been saved, has it been compiled successfully, has it? ? ?
2. Is it replaced by ftp
3. Whether the system has been restarted
After the experiment, after multiple restarts, the program print results are still inconsistent, how to explain?
After careful observation, because after the system restarts, the ftp directory is temporary, copied to other directories, the filezilla program. If it is interrupted, the correct destination directory is displayed. In fact, it may have been switched to another directory, resulting in an error. .
Remember the investigation method of each link. Especially when transferring on ftp, be careful.