#include<stdio.h>

int main(int argc,char *argv[])

{

    FILE *src_fp,*des_fp;

    int src_ret;

    char buf[]={};

    if(argc != )

    {

        printf("please input paramester\n");

        return -;

    }

    //打开源文件

    src_fp = fopen(argv[],"r");

    if(src_fp == NULL)

    {

        printf("open the file %s is failure\n",argv[]);

        return -;

    }

    printf("open the file %s is success\n",argv[]);

    //打开目的文件

    des_fp = fopen(argv[],"w");

    if(des_fp == NULL)

    {

        printf("open the file %s is failure\n",argv[]);

        return -;

    }

    printf("open the File %s is success\n",argv[]);

    //将源文件拷到目的文件中

    while()

    {

        src_ret = fread(buf,,,src_fp);

        if(src_ret == )

        {

            printf("the file is end\n");

            break;

        }

        fwrite(buf,,src_ret,des_fp);

    }

    //关闭文件流

    fclose(src_fp);

    fclose(des_fp);

    return ;

}