在WP7（稍作修改也可运行于WP8平台）集成FM收音机、照相机及调用meidaelement，mediaplayer进行视频输出的例子，学习WP应用的好例子；-In WP7 (slight modifications can also run on WP8 platform) integrated FM radio, camera and call meidaelement, mediaplayer for video output examples, learn a good example