readme update

2021-12-31 17:13:04 +08:00 · 2021-12-31 17:13:04 +08:00 · 45a176dc22
parent 542fb0969e
commit 45a176dc22
1 changed files with 10 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -67,6 +67,16 @@ python opencv_webcam.py



+### :bulb: 摄像头选择
+
+```shell
+# 多摄像头切换示例
+python opencv_webcam.py -dev 1
+python opencv_webcam.py -dev 2
+```
+
+
+
 #### :bulb: 设置退出键

 ```shell