1.重新格式化代码，修正代码风格。

driver/mrdrv.h

@@ -14,23 +14,33 @@
 #include "mrconfig.h"
 
 #if (MR_CONF_PIN == MR_CONF_ENABLE)
+
 #include "drv_gpio.h"
+
 #endif
 
 #if (MR_CONF_SERIAL == MR_CONF_ENABLE)
+
 #include "drv_uart.h"
+
 #endif
 
 #if (MR_CONF_SPI == MR_CONF_ENABLE)
+
 #include "drv_spi.h"
+
 #endif
 
 #if (MR_CONF_ADC == MR_CONF_ENABLE)
+
 #include "drv_adc.h"
+
 #endif
 
 #if (MR_CONF_DAC == MR_CONF_ENABLE)
+
 #include "drv_dac.h"
+
 #endif
 
 #endif