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try {
FileReader fReader=new FileReader("c:\\java\\test.txt");
BufferedReader bReader=new BufferedReader(fReader);
while(true) {
    String temp=bReader.readLine();
    if(temp==null)
        break;
    System.out.println(temp);
}
}
catch (IOException e) {
    e.printStackTrace();
}
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ÀýÈ磺BufferedReader in= new BufferedReader(new InputStreamReader(System.in));
¼òµ¥µã˵£¬¶ÁÈ¡Îı¾Í¨³£Ê¹ÓÃBufferReader£¬¸ÃÀà±È½Ï³ÉÊ죬×Ö·ûÁ÷µÄÉϲ㣬¼òµ¥ÊµÓá£
 
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2 ¡¢ÊÇ byte[] £º ByteArrayInputStream, ByteArrayOutputStream( ×Ö½ÚÁ÷ ) 
3 ¡¢ÊÇ Char[]: CharArrayReader, CharArrayWriter( ×Ö·ûÁ÷ ) 
4 ¡¢ÊÇ String: StringBufferInputStream, StringBufferOuputStream ( ×Ö½ÚÁ÷ )StringReader, StringWriter( ×Ö·ûÁ÷ ) 
5 ¡¢ÍøÂçÊý¾ÝÁ÷£º InputStream, OutputStream,( ×Ö½ÚÁ÷ ) Reader, Writer( ×Ö·ûÁ÷ ) 
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