diff --git a/book/02：STM32的硬件电路/01.md b/book/02：STM32的硬件电路/01.md
index 5670451..f8c334f 100644
--- a/book/02：STM32的硬件电路/01.md
+++ b/book/02：STM32的硬件电路/01.md
@@ -12,14 +12,17 @@
 
 - [如何在STM32中获得最佳ADC精度](<../../STM32官方手册/AN2834 - 如何在STM32中获得最佳ADC精度.pdf>)
 - [STM32中文参考手册](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32%E4%B8%AD%E6%96%87%E5%8F%82%E8%80%83%E6%89%8B%E5%86%8C.pdf)
-
 - [STM32CubeIDE入门指南](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32CubeIDE%E5%85%A5%E9%97%A8%E6%8C%87%E5%8D%97.pdf)
 - [STM32CubeMX用户手册](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32CubeMX%E7%94%A8%E6%88%B7%E6%89%8B%E5%86%8C.pdf)
-
 - [STM32F1xxHAL库与LL库手册(英文)](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32F1xxHAL%E5%BA%93%E4%B8%8ELL%E5%BA%93%E6%89%8B%E5%86%8C(%E8%8B%B1%E6%96%87).pdf)
-
 - [STM32F10xx硬件开发应用笔记](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32F10xx%E7%A1%AC%E4%BB%B6%E5%BC%80%E5%8F%91%E5%BA%94%E7%94%A8%E7%AC%94%E8%AE%B0.pdf)
-
 - [STM32F103中文参考手册](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32F103%E4%B8%AD%E6%96%87%E5%8F%82%E8%80%83%E6%89%8B%E5%86%8C.pdf)
+- [STM32F103C8规格书](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32F103C8%E8%A7%84%E6%A0%BC%E4%B9%A6.pdf)
+
+# 开发板
+
+![Alt text](../../%E5%BC%80%E5%8F%91%E6%9D%BF%E8%B5%84%E6%96%99/%E6%8A%98%E9%A1%B5%E5%B0%81%E9%9D%A2%E5%B0%81%E5%BA%95.png)
+
+![Alt text](../../%E5%BC%80%E5%8F%91%E6%9D%BF%E8%B5%84%E6%96%99/%E6%8A%98%E9%A1%B5%E5%86%85%E9%9D%A2.png)
 
-- [STM32F103C8规格书](../../STM32%E5%AE%98%E6%96%B9%E6%89%8B%E5%86%8C/STM32F103C8%E8%A7%84%E6%A0%BC%E4%B9%A6.pdf)
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+[学习板原理图](../../%E5%BC%80%E5%8F%91%E6%9D%BF%E8%B5%84%E6%96%99/%E5%AD%A6%E4%B9%A0%E6%9D%BF%E5%8E%9F%E7%90%86%E5%9B%BE.pdf)
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