IO三：按行读取

form.txt文件：

张三 17 上海
李四 20 北京
王五 18 深圳

import java.io.*;class TestIO{public static void main(String args []){BufferedReader bufferedreader = null;FileReader fr = null;try{fr = new FileReader("F:/javastudy/src/form.txt");bufferedreader = new BufferedReader(fr);String line = null;while(true){line = bufferedreader.readLine();if(line == null){break;}System.out.println(line);}}catch(Exception e){System.out.println(e);}finally{try{bufferedreader.close();fr.close();}catch(Exception e){System.out.println(e);}}}}