下面的代码块怎么样?
channel.setCommand(command);PipedOutputStream pos=new PipedOutputStream();PipedInputStream pis=new PipedInputStream(pos);channel.setOutputStream(pos);channel.setExtOutputStream(pos);InputStream in=pis;channel.connect();

下面的代码块怎么样?
channel.setCommand(command);PipedOutputStream pos=new PipedOutputStream();PipedInputStream pis=new PipedInputStream(pos);channel.setOutputStream(pos);channel.setExtOutputStream(pos);InputStream in=pis;channel.connect();