Linux练习（函数调用复制文件）

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int c;

    FILE *in,*out;

    in=fopen("file.in","r");

    out=fopen("file.out","w");



    while((c=fgetc(in))!=EOF)

            fputc(c,out);

    exit(0);



}