/*
	 * 拷貝檔案: 從一個檔案讀取資料，寫到另一個檔案，迴圈進行“邊讀邊寫”
	 * 1.文字檔案
	 * 2.二進位制檔案:影象、聲音、可執行程式類
	 * */
	@Test
	public void TestCopy() {
		FileInputStream in = null;
		FileOutputStream out = null;
		byte[] buf = new byte[1024];
		int len = 0;
		try {
			in = new FileInputStream("E:/test/1.jpg");
			out = new FileOutputStream("E:/test/2.jpg");
			while ((len = in.read(buf)) != -1) {
				out.write(buf, 0, len);
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (in != null) {
					in.close();
				}
			} catch (IOException e) {
				throw new RuntimeException("關閉輸入流失敗！", e);
			}
			try {
				if (out != null) {
					out.close();
				}
			} catch (IOException e) {
				throw new RuntimeException("關閉輸出流失敗！", e);
			}
		}
	}