[Java] BufferedReader(new FileReader( )) 从文件输入数据

import java.io.*; public class InputStreamReaderFromFile{     public static void main(String[] args) throws IOException{         BufferedReader br = new BufferedReader(new FileReader("2.txt"));         while(true){             String str = br.readLine();             if(str.equals("over")){                 System.exit(0);             }             System.out.println(str);         }     } }

//注意 new BufferedReader(new FileReader("2.txt"));