diff --git a/docs/attach.md b/docs/attach.md
index aae0820..d149a5d 100644
--- a/docs/attach.md
+++ b/docs/attach.md
@@ -1,10 +1,10 @@
 ### 全局电路鸟瞰图
-![circuit_overall](https://cloud.yimian.xyz/package/iotcat/digital-clock/pic/circuit_overall.jpg)
+![circuit_overall](img/circuit_overall.jpg)
 
 ### 译码器电路示意图
-![decoder_up](https://cloud.yimian.xyz/package/iotcat/digital-clock/pic/decoder_up.jpg)
-![decoder_down](https://cloud.yimian.xyz/package/iotcat/digital-clock/pic/decoder_down.jpg)
+![decoder_up](img/decoder_up.jpg)
+![decoder_down](img/decoder_down.jpg)
 
 ### 数字屏电路示意图
-![screen_left](https://cloud.yimian.xyz/package/iotcat/digital-clock/pic/screen_left.jpg)
-![screen_right](https://cloud.yimian.xyz/package/iotcat/digital-clock/pic/screen_right.jpg)
+![screen_left](img/screen_left.jpg)
+![screen_right](img/screen_right.jpg)