引用：http://www.189works.com/article-30243-1.html
- Intent intent = new Intent(...);
- Bundle bundle = new Bundle();
- bundle.putString("param", "value");
- intent.putExtras(bundle);
- context.startActivity(intent); 或 context.startService(intent);
- Bundle bunde = intent.getExtras();
- String name = bunde.getInt("param");
