02_IO操作的基本规律(InputStream,OutputStream,Reader,Writer,FileReader,FileWriter,BufferedReader,BufferedWri
模拟BufferedInputStream,编写一个类packagetoto.IO; importjava.io.IOException;importjava.io.InputStream; classMyBufferedInputStream{ privateInputStreamin; privatebyte[]buf=newbyte[1024*4]; privateintpo