#include<stdio.h>
int main()
{
FILE *fp1,fp2;
//我测试的图片大小事20.5KB
char buf[21*1024];
fp1=fopen("/mycode/test.jpg","r");
fread(buf,sizeof(char),21*1024,fp1);
fopen("mycode/new.jpg","w");
fwrite(buf,sizeof(char),21*1024,fp2);
return 0;
}
程序执行结束后,即会生成一张名为new.jpg的图片