#### 位置
位置有十二个方向。如需箭头指向目标元素中心,可以设置 `arrowPointAtCenter`。
#### Placement
There are 12 `placement` options available. Use `arrowPointAtCenter` if you want arrow point at the center of target.
```tpl
{{text}}
{{text}}
TL
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{{text}}
Top
{{text}}
{{text}}
TR
{{text}}
{{text}}
LT
{{text}}
{{text}}
Left
{{text}}
{{text}}
LB
{{text}}
{{text}}
RT
{{text}}
{{text}}
Right
{{text}}
{{text}}
RB
{{text}}
{{text}}
BL
{{text}}
{{text}}
Bottom
{{text}}
{{text}}
BR
```