编写一个模拟GPS的应用程序，首先向串口写入如下信息 $GPRMC,082020,A4060.9870,S21720.3278,W,000.0.000.0,070707,005.6,W*62再从串口中读出此信息，并对此信息进行解析，输出经度，纬度，北京时间-The preparation of a simulated GPS applications, first of all, write the following information to the serial port $ GPRMC, 082020, A4060.9870, S21720.3278, W, 000.0.000.0,070707,005.6, W* 62 from the serial read this information and parse this information, the output longitude, latitude, Beijing