IO必知必会(7)——转换流

字符流比字节流在操作上更加方便，Java提供了转换流来实现字节流向字符流的转换。

public class KeyinTest {
    public static void main(String[] args) {
        try (InputStreamReader reader = new InputStreamReader(System.in);
                 //BufferedReader has readLine() to read by Line
                BufferedReader br = new BufferedReader(reader)) {
            String line = null;
            while ((line = br.readLine()) != null) {
                if (line.equals("exit")) {
                    System.exit(1);
                }
                ;
                System.out.println("输出的内容是:" + line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}