内存卡的数据保存与读取

File file=new File(Environment.getExternalStorageDirectory(), name);

                                                  try {

                                                            FileOutputStream   fos=new FileOutputStream(file);

                                                            fos.write(content.getBytes());

                                                            fos.close();

                                                               Toast.makeText(getApplicationContext(), "保存成功", 200).show();

                                                               Toast.makeText(getApplicationContext(), "保存失败", 200).show();

                                                            e.printStackTrace();

File file=new File(Environment.getExternalStorageDirectory(), name);

                                                  try {

                                                            FileOutputStream   fos=new FileOutputStream(file);

                                                            fos.write(content.getBytes());

                                                            fos.close();

                                                               Toast.makeText(getApplicationContext(), "保存成功", 200).show();

                                                               Toast.makeText(getApplicationContext(), "保存失败", 200).show();

                                                            e.printStackTrace();