program main
implicit none
integer ::narg
CHARACTER(len=32) ::arg
narg=IARGC()
if(narg >0)then
call getarg(1,arg)
endif
write(*,*)narg
write(*,*)arg
end
IARGC — Get the number of command line arguments
Return value:
INTEGER(4).
GETARG — Get command line arguments
- Description:
- Retrieve the POS-th argument that was passed on the command line when the containing program was invoked.
- Syntax:
CALL GETARG(POS, VALUE)- Arguments:
-
POS Shall be of type INTEGERand not wider than the default integer kind; POS \geq 0VALUE Shall be of type CHARACTERand of default kind.VALUE Shall be of type CHARACTER. - Return value:
- After
GETARGreturns, the VALUE argument holds the POSth command line argument. If VALUE can not hold the argument, it is truncated to fit the length of VALUE.
If there are less than POS arguments specified at the command line, VALUEwill be filled with blanks. If POS = 0, VALUE is set to the name of the program (on systems that support this - 比如用gfortran编译之后
- gfortran 1.F90 -o test 编译成目标文件test，执行的时候在程序名后跟上需要输入的参数即可
- 比如./test fgh 3 5，这样就相当于输入的时候键入了3个命令行参数