以下代码是针对 BufferedReader 和 BufferedWriter 的

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(inF),"GB2312"));// 以GB2312的编码读文件

BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile), StandardCharsets.UTF_8));// 以utf-8写文件