IO流-转换流

 1,指定编码方式

FileWrite fw = new FileWrite("..\\IOsteam\\",CharSet.forname("GBK"));//以转换流方式指定编码方式
fw.write("你好");
fw.close();

 2，以字节流用一整行读取文字

BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("..\\IOstream")));
String line;
while((line = br.readLine()) != null){
    sout(line);
}
br.close();