SAVE Save workspace variables to disk.
SAVE FILENAME saves all workspace variables to the binary "MAT-file"
named FILENAME.mat. The data may be retrieved with LOAD. If FILENAME
has no extension, .mat is assumed.
MAT Options:
SAVE ... -MAT saves in MAT format regardless of extension.
SAVE ... -V4 saves a MAT-file that MATLAB 4 can LOAD.
SAVE ... -APPEND adds the variables to an existing file (MAT-file only).
save 命令应该可以 O(∩_∩)O~