输入输出流

package zuoye;

import java.io.File;
import java.io.FileOutputStream;

public class TextRw
{
    public static void main(String[] args)
    {
        File file =new File("d:/RestRw.txt");        
        try 
        {
            FileOutputStream fos =new FileOutputStream(file);
             
            String xinxi ="学号\r\n姓名";
            byte[] b =xinxi.getBytes();
            fos.write(b);
            fos.close();            
        } 
        catch (Exception e1)
        {
            
            e1.printStackTrace();
        }    
    }
}