int main(int argc,char *argv[])参数的应用

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

//a.out   src.txt dest.txt
//argv[0]
int main(int argc,char *argv[])
{
    char src[] = {};
    char dest[] = {};
    int i;    

    for(i = ; i < argc; i++){
        printf("%s\n",argv[i]);
    }

    return ;
}