diff --git a/03-Open-Camera/cv2_capture_live_video_from_camera.py b/03-Open-Camera/cv2_capture_live_video_from_camera.py
index 275c14f..dee6cbe 100644
--- a/03-Open-Camera/cv2_capture_live_video_from_camera.py
+++ b/03-Open-Camera/cv2_capture_live_video_from_camera.py
@@ -1,22 +1,22 @@
-import cv2
+import cv2 as cv
 
 # 1.打开摄像头
-capture = cv2.VideoCapture(2)
+capture = cv.VideoCapture(2)
 
 # 2.获取捕获的分辨率
 width, height = capture.get(3), capture.get(4)
 print(width, height)
 # 以原分辨率的一倍来捕获，
 # 参数1可以直接写数字，或者OpenCV符号表示
-capture.set(cv2.CAP_PROP_FRAME_WIDTH, width * 2)
-capture.set(cv2.CAP_PROP_FRAME_HEIGHT, height * 2)
+capture.set(cv.CAP_PROP_FRAME_WIDTH, width * 2)
+capture.set(cv.CAP_PROP_FRAME_HEIGHT, height * 2)
 
 while(True):
     # 获取一帧
     ret, frame = capture.read()
     # 将这帧转换为灰度图
-    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
+    gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY)
 
-    cv2.imshow('frame', gray)
-    if cv2.waitKey(1) == ord('q'):
+    cv.imshow('frame', gray)
+    if cv.waitKey(1) == ord('q'):
         break