graph LR
A[方形] -->B(圆角)
    B --> C{条件a}
    C -->|a=1| D[结果1]
    C -->|a=2| E[结果2]
    F[横向流程图]

raph LR A[方形] -->B(圆角) B --> C{条件 a} C -->|a=1| D[结果 1] C -->|a=2| E[结果 2] F[横向流程图]

st=>start: 开始框
op=>operation: 处理框
cond=>condition: 判断框(是或否?)
sub1=>subroutine: 子流程
io=>inputoutput: 输入输出框
e=>end: 结束框
st->op->cond
cond(yes)->io->e
cond(no)->sub1(right)->op

st=>start: 开始框 op=>operation: 处理框 cond=>condition: 判断框(是或否?) sub1=>subroutine: 子流程 io=>inputoutput: 输入输出框 e=>end: 结束框 st->op->cond cond(yes)->io->e cond(no)->sub1(right)->op