//复制字符文件操作 BufferedReader bf = new BufferedReader(new FileReader("//地址")); BufferedWriter writer = new BufferedWriter(new FileWriter("//地址")); String str = ""; while( (str = bf.readLine()) != null){//一行一行的读入写入 writer.write(str); writer.newLine(); //注意，一定要写换行 } bf.close(); writer.close();
参考：https://www.cnblogs.com/jinking-tomcat/p/9031829.html
感谢！
原文：https://www.cnblogs.com/rtyxxy/p/12510098.html