用fread和fwrite实现文件复制操作

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main(int argc,char **argv)

{

    FILE *fp_src,*fp_des;

    char buf[128];

    int num;

    if(argc!=3)

    {

        printf("the format must be: cp_example file_src file_des\n");

        exit(EXIT_FAILURE);

    }

    if((fp_src=fopen(argv[1],"r"))==NULL)

    {

        perror("fopen1");

        exit(EXIT_FAILURE);

    }

    if((fp_des=fopen(argv[2],"w"))==NULL)

    {

        perror("fopen2");

        exit(EXIT_FAILURE);

    }

    do

    {

        num=fread(buf,1,128,fp_src);

        fwrite(buf,1,num,fp_des);

        if(feof(fp_src)==1)

            break;

    }while(1);

    fclose(fp_src);

    fclose(fp_des);

}

用fread和fwrite实现文件复制操作,布布扣,bubuko.com