private static void FileCopy(String readfile,String writeFile) {        //ļƺ
        try {
            FileInputStream input = new FileInputStream(readfile);
            FileOutputStream output = new FileOutputStream(writeFile);
            int read = input.read();
            while ( read != -1 ) {
                output.write(read);
                read = input.read();
            }
            input.close();
            output.close();
        } catch (IOException e) {
            System.out.println(e);
        }

    }