mermaid写法

常规用法

flowchart TD
	Start --> Stop

flowchart TD
	Start --> Stop

graph TD
	A(TextA) --> B(TextB)

graph TD
	A(TextA) --> B(TextB)

classDiagram
	class Duck {
		String beakColor
		swim()
		quack()
	}

classDiagram
	class Duck {
		String beakColor
		swim()
		quack()
	}