save project

diy.py

@@ -6,5 +6,11 @@ class A():
 
 B=A(12,123,1234)
 C=A(34,456,4567)
-print(B.height)
-print(C.weight)
\ No newline at end of file
+
+def increase():
+    B.age=B.age+1
+    B.height=B.height+10
+    B.weight=B.weight+20
+
+increase()
+print(B.weight)
\ No newline at end of file