Initial commit

Experiment/graph/Exp4/AbFather.mermaid

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+classDiagram
+    class Father {
+        <<abstract>>
+        # double height
+        # double weight
+        + Father(double height, double weight)
+        + double getHeight()
+        + void setHeight(double height)
+        + double getWeight()
+        + void setWeight(double weight)
+        + void hobby()
+    }
+
+    class Son {
+        - String personality
+        + Son(double height, double weight, String personality)
+        + String getPersonality()
+        + void setPersonality(String personality)
+        + void hobby()
+    }
+
+    class Main {
+        + main(String[] args)
+    }
+
+    Father <|-- Son : 继承
+    Main --> Son : 创建与使用