GBK、UTF-8等常用的编码格式的编码以及解码（）

在I/O中使用

String charset = "GBK";
  String file = "E://text.txt";
  
  FileOutputStream fileOutputStream = new FileOutputStream(file);
  //OutputStreamWriter把字符转换为字节，为编码
  OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, charset);
  
  outputStreamWriter.write("I am 慕司");
  outputStreamWriter.close();
  
  FileInputStream fileInputStream = new FileInputStream(file);
  //InputStreamReader把字节转换为字符，为解码
  InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream,charset);
  

char[] cs = new char[64];
  StringBuffer buffer = new StringBuffer();
  int count = 0;
  try {
   
  
       while((count=inputStreamReader.read(cs))!=-1) {
       buffer.append(cs,0,count);
   
    }
  }catch(Exception e) {
   
  }
  System.out.println(buffer);
  inputStreamReader.close();
  

其借鉴于https://www.cnblogs.com/yaya-yaya/p/5768616.html