java.io.BufferedReader与BufferedWriter 缓冲流中对字符串的操作 上几篇都是对字节的操作

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void Test(){

 File f = new File("/users/yifei/desktop/assets/ll.txt");

  File fc = new File("/users/yifei/desktop/assets/lcopy.txt");

InputStreamReader isr;

try {

isr = new InputStreamReader(new FileInputStream(f));

BufferedReader bw = new BufferedReader(isr);

OutputStreamWriter osw= new OutputStreamWriter(new FileOutputStream(fc));

BufferedWriter br = new BufferedWriter(osw);

br.write(bw.readLine());

br.write(bw.readLine());//关闭流时,先打开的后关闭

br.close();

osw.close();

bw.close();

isr.close();

} catch (FileNotFoundException e) {

e.printStackTrace();

}catch (IOException e) {

e.printStackTrace();

}

}