使用字节流完成拷备 配合字节数组

import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;public class Test5 { public static void main(String[] args) throws IOException { // 获取要拷备的资源 FileInputStream fileInputStream = new FileInputStream("apple.png"); // 获取要保存的目标 FileOutputStream fileOutputStream = new FileOutputStream("拷备apple.png"); // 边读。边写 byte[] bytes = new byte[100]; int len = fileInputStream.read(bytes); while (len != -1) { // 写数据 fileOutputStream.write(bytes, 0, len); // 重新再来yao一下 len = fileInputStream.read(bytes); } // 关闭资源 fileInputStream.close(); fileOutputStream.close(); System.out.println("game over"); }}