一个是输入流 一个 是输出流 没法直接转换吧!
FileInputStream fiptS = new FileInputStream("D:\\hq.avi");
InputStream iptS = (InputStream) fiptS;
FileOutputStream foptS = new FileOutputStream("D:\\hq-copy.avi");
OutputStream optS = (OutputStream) foptS;
int c;
while((c=iptS.read())!=-1)
{
optS.write(c);
}
optS.flush();