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package com.gao;

import java.io.*;

public class transfer_stream {
    public static void main(String[] args) throws Exception {

        InputStream in = new FileInputStream("E:\\黑马教育\\demo.txt");

        Reader re = new InputStreamReader(in,"GBK");

        BufferedReader bf = new BufferedReader(re);

        String line;
        while ((line=bf.readLine())!= null){
            System.out.println(line);

        }


    }
}

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字符输出转换流：

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