复制图片

package cn.home;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class CopyPicture {
        public static void main(String[] args) throws IOException {
            FileInputStream fis = new FileInputStream("C:\\str.png");
            DataInputStream dis = new DataInputStream(fis);
            FileOutputStream fos = new FileOutputStream("E:\\大胡\\nstr.png");
            DataOutputStream dos = new DataOutputStream(fos);
            int num = -1;
            while((num=dis.read())!=-1) {
                dos.write(num);
            }
            fos.flush();
            System.out.println("已完成，可到文件查看");
            dos.close();
            fos.close();
            dis.close();
            fis.close();
        }
}