TestTransform1.java的源代码如下： [code lang="java"] package com.daozhao.io; import java.io.*; public class TestTransform1 { public static void main(String[] args){ try{ OutputStreamWriter osw =new OutputStreamWriter(new FileOutputStream("e:\\4.txt")); osw.write("microsoftapplesunhp"); System.out.println(osw.getEncoding()); osw.close(); osw=new OutputStreamWriter(new FileOutputStream("e:\\4.txt",true),"ISO8859_1"); osw.write("helloworld"); System.out.println(osw.getEncoding()); osw.close(); } catch(IOException e){ System.out.println("未知错误"); System.exit(-1); } } } [/code]