diff --git a/4.17组会.md b/4.17组会.md
index f477452..dc0d668 100644
--- a/4.17组会.md
+++ b/4.17组会.md
@@ -81,12 +81,12 @@ SUBSYSTEM=="usb" ATTRS{idVendor}=="YOUR_VENDOR_ID", ATTRS{idProduct}=="YOUR_PROD
 
 ##### 1. 将超声波和碰撞模块数据接入并转化为ros消息格式，以供避障使用
 
-![5](./image/5.png)
+<img src="./image/5.png" alt="5" style="zoom:67%;" />
 
 2. ##### app测试
 
-![2](./image/2.png)
+<img src="./image/2.png" alt="2" style="zoom:50%;" />
 
-![3](./image/3.png)
+<img src="./image/3.png" alt="3" style="zoom:50%;" />
 
-![4](./image/4.png)
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+<img src="./image/4.png" alt="4" style="zoom:50%;" />
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