```mermaid flowchart TB subgraph a[Right] direction TB A' --> B' --> C' --> D' --> A' end subgraph b[Left] direction TB A --> B --> C --> D end A' --> D A --> D' ```
flowchart TB
subgraph a[Right]
direction TB
A' --> B' --> C' --> D' --> A'
end
subgraph b[Left]
direction TB
A --> B --> C --> D
end
A' --> D
A --> D'
subgraph a 和 subgraph b 如果交换代码位置,subgraph a 由于代码位置靠后,所以布局靠前,更不易被调整位置,所以abcd按照主轴方向依次向下排列,这样看起来顺眼多了。
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```mermaid flowchart TB subgraph b[Left] direction TB A --> B --> C --> D end subgraph a[Right] direction TB A' --> B' --> C' --> D' --> A' end A' --> D A --> D' ```
flowchart TB
subgraph b[Left]
direction TB
A --> B --> C --> D
end
subgraph a[Right]
direction TB
A' --> B' --> C' --> D' --> A'
end
A' --> D
A --> D'