多列

graph LR     A[Square Rect] -- Link text --> B((Circle))     A --> C(Round Rect)     B --> D{Rhombus}     C --> D

graph TB
sq[Square shape] --> ci((Circle shape))
subgraph A
od>Odd shape]-- Two line<br/>edge comment --> ro
di{Diamond with <br/> line break} -.-> ro(Rounded<br>square<br>shape)
di==>ro2(Rounded square shape)
end

%% Notice that no text in shape are added here instead that is appended further down
e --> od3>Really long text with linebreak<br>in an Odd shape]

%% Comments after double percent signs
e((Inner / circle<br>and some odd <br>special characters)) --> f(,.?!+-*ز)

cyr[Cyrillic]-->cyr2((Circle shape Начало));

 classDef green fill:#9f6,stroke:#333,stroke-width:2px;
 classDef orange fill:#f96,stroke:#333,stroke-width:4px;
 class sq,e green
 class di orange