流的对拷

public class FileEach {
    public static void main(String[] args){
        try {
            FileInputStream fis = new FileInputStream("C:\a.html");//输入流
            FileOutputStream fos = new FileOutputStream("C:\a_bak.html");//输入流

　　　　　　  //模版代码
            int len = 0;
            byte[] buffer = new byte[1024];
            while((len = fis.read(buffer)) > 0){
                fos.write(buffer, 0, len);
            }
            fis.close();
            fos.flush();
            fos.close();
            System.out.println("ok");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
    }
}