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try{PrintWriter pw = newPrintWriter(newFileWriter("d:\\1.txt"));BufferedWriter bw = newBufferedWriter(newFileWriter(newFile("d:\\1.txt")));OutputStream os = newFileOutputStream(newFile("d:\\1.txt"));// 1os.write("ffff".getBytes());// 2// bw.write("ddddddddddddddddddddddddd");// 3// pw.print("你好sssssssssssss");   bw.close();pw.close();os.close();} catch(IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}