public void testReadWrite() throws Exception {
		byte[] data = FileUtils.read("g:\\test\\a.jpg");
		FileUtils.write(data, "g:\\test\\aa.jpg");
		data = FileUtils.read("g:\\test\\t.txt");
		FileUtils.write(data, "g:\\test\\tt.txt");
		FileUtils.write(data, "utf-8", "g:\\test\\tutf-8.txt");
	}