package chapter.second;
import
public class JSysteminReadTest {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
              byte[] b=new byte[100];
              int count=System.in.read(b);
                      for(int i=0;i<=count-1;i++)
                      {
                         System.out.print((char)b[i]);
                      }
    }

}

有大神吗？