file_io_apl.h
use to ctrl read and write file.
m2.cpp add parameter and judge mode of the parameter.
change file_open()
finish the file_io_api.h
need to add the judge of the mode at parser.cpp and m2.cpp
initialize value of mode at parser.h
change the m2.cpp to distinguish the mode of parameter
fix a bit of bugs
but the working has some unexpected
fixed the m2.cpp
recognize the mode and do the option
find some strerr error and fixed it
Merge pull request #2 from FMplus/fileop

Fileop