字节流转换成字符流

1.FileInputStream fileInputStream = new FileInputStream("d:/text.txt");  // 定义一个指向D:/TEXT.TXT 的字节流   
2.  
3.InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);   
4.//字节流转换成InputStreamReader   
5.  
6.BufferedReader bufferedReader = new BufferedReader(inputSteamReader);   
7.//InputStreamReader 转换成带缓存的bufferedReader