老哥们帮忙解释下这代码吧

qsjqsjqsj

/**
  * @brief  The assert_param macro is used for function's parameters check.
  * @param  expr: If expr is false, it calls assert_failed function which reports
  *         the name of the source file and the source line number of the call
  *         that failed. If expr is true, it returns no value.
  * @retval None
  */
  #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
  void assert_failed(uint8_t* file, uint32_t line);
#else
  #define assert_param(expr) ((void)0)      
#endif /* USE_FULL_ASSERT */

#endif /* __STM32F10x_CONF_H */
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

我知道答案 目前已有1人回答

阅读全文

qsjqsjqsj

不用了，谢谢，找到了