@@ -1,3 +1,25 @@
# markdown
<h1>项目标题</h1>
<h2>项目标题</h2>
+
+```plantuml
+@startuml
+abstract abstract
+abstract class "abstract class"
+annotation annotation
+circle circle
+() circle_short_form
+class class
+class class_stereo <<stereotype>>
+diamond diamond
+<> diamond_short_form
+entity entity
+enum enum
+exception exception
+interface interface
+metaclass metaclass
+protocol protocol
+stereotype stereotype
+struct struct
+@enduml
+```
