public void ioByte() {
		FileInputStream in = null;
		FileOutputStream out = null;
		try {
			in = new FileInputStream(inFilePath);
			out = new FileOutputStream(outFilePath);
			// 定义一个1024个位置的byte数组 相当与让读取多了个缓冲区。每次缓存1024个byte
			byte[] bytes = new byte[1024];
			while (in.read(bytes) != -1) {
				out.write(bytes);
			}
			System.out.println(content);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				in.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}