خالد ال نملان这是预期的输出吗?从代码: sun.misc.BASE64Decoder base64Decoder = new BASE64Decoder(); byte[] ddd = base64Decoder.decodeBuffer("2K7Yp9mE2K8g2KfZhCDZhtmF2YTYp9mG"); String s = new String(ddd); System.out.println(s);