当我捕捉到一个ParseException (代码1)时,编译器会大喊"Unreachable catch block for ParseException. This exception is never thrown from the try statement body“。但是当我捕捉到一个Exception(代码2)时,它是一个哑巴。为什么会这样呢?try {}catch (ParseException e1) { //Unreachable catch block for ParseException. This exceptio