第三章增加视频例子

12 months ago · b1756bbf26
parent dca5babdbb
commit b1756bbf26
1 changed files with 4 additions and 1 deletions
--- a/book/03：通用输入输出/01.md
+++ b/book/03：通用输入输出/01.md
@ -324,4 +324,7 @@ void HAL_GPIO_WritePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin, GPIO_PinState Pin

 2. 程序相对比较复杂。

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+# 4. 扩展
+
+[用按键控制LED](https://www.bilibili.com/video/BV1Z84y157dx/?spm_id_from=333.788&vd_source=3c8e333d6657680a469ddf0238f01d6a)
+