函數(shù)

fortran里的函數(shù)是輸入，輸出都在一個(gè)括號(hào)里，比如：

subroutine f(x_in,y_in,x_out,y_out)

?end

調(diào)用時(shí)直接寫：

call f(x_in,y_in,x_out,y_out)

matlab里函數(shù)是：

function [x_out,y_out] = f(x_in,y_in)

end

調(diào)用時(shí)是：

[x_out,y_out] = f(x_in,y_in)；

Python里函數(shù)是：

def printfun( str ):

? ?"打印任何傳入的字符串"

? ?print str

? ?return [str]

?

調(diào)用函數(shù)

printfun("我要調(diào)用用戶自定義函數(shù)!")

讀寫文件

fortran

open(1,file='in/input.dat',status='old')

read(1,'(a)')? letter

read(1,*)? m,n,o,p,q

open(1,file='out/output.dat',status='old')

write(1,'(a)')? letter

write(1,*)? m,n,o,p,q

matlab

fid=fopen('./input.dat');

str = fgetl(fid);?

fclose(fid);

?python

f = open("input.txt")

lines = f.readline()

f.close()