#### 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
      
      
        
          {{text}}
          {{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
      
     
   
```