Take the destroyV4.0 system as an example:
about/
announce/
file/
The above directories or files must be correctly set to write permissions, and when setting the directory to be writable, all subdirectories and subfiles must be included, otherwise the system functions may not be used normally.。
After the installation directory install is completed, the system will try to destroy the installation file, but it may not be destroyed due to the permission file. It is recommended thatftp deletes install directory。
After the upgrade directory upgrade is completed, the system will try to destroy the upgrade file, but it may not be destroyed due to permission issues. It is recommended thatftp deletes the upgrade directory。