完成第二个题目

test/2024,9,10/.idea/2024,9,10.iml

@@ -2,7 +2,7 @@
 <module type="PYTHON_MODULE" version="4">
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
+    <orderEntry type="jdk" jdkName="D:\Anaconda\envs\openCV_study" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>

test/2024,9,10/.idea/misc.xml

@@ -3,5 +3,5 @@
   <component name="Black">
     <option name="sdkName" value="OpenCV_Study" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="OpenCV_Study" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="D:\Anaconda\envs\openCV_study" project-jdk-type="Python SDK" />
 </project>

test/2024,9,10/set_alpha.py

@@ -14,3 +14,5 @@ img_rgba=cv.merge((blue,green,red,alpha))
 cv.imshow("changed",img_rgba)
 cv.waitKey(0)
 cv.destroyAllWindows()
+# save
+cv.imwrite("img.png",img_rgba)