大纲排序

reorder(*args, **kwargs):
      - back : b   (bool)          [create]
          # 移动到末尾
    
      - front : f   (bool)          [create]
          # 移动到开头
    
      - relative : r   (int)           [create]
          # 可循环，
          Move object(s) relative to other siblings.    
          
          
  给定列表排序从 
  list.short() [0,1,2,3,4]
  for i in lit:
      pm.reorder(i, back=1)