机智云的源代码，里面有代码的解析 int main(void) { SystemInit(); UARTx_Init(); Printf_SystemRccClocks(); RTC_Init(); Hal_Init(); McuStatusInit(); while(1) { MessageHandle(); KEY_Handle(); IR_Handle(); DHT11_Read_Data(&Device_ReadStruct.Temperature, &Device_ReadStruct.Humidity); ReportDevStatusHandle(); } }