安装：
npm install mindmap
截图：
用法：
load [mindmap name] or l [mindmap name]
Load or create a mindmap.
add [id] [text] or a [id] [text]
Add a child.
insert [id] [text] or i [id] [text]
Insert a node.
insert -1 Animal
insert 10 White house
edit [id] [text] or e [id] [text]
Edit a node.
delete [id] or del [id] or d [id]
Delete a node.
help or h
Help information.
exit
Exit program.