As a connection is dragged between objects, it provides visual feedback in the form of rubber-banding: The arrow forms a line that extends from the first object to the current cursor position.

• 当拖动两个对象之间的连接时，它以橡皮筋形式提供视觉反馈，箭头成为一条从鼠标按下点延伸到光标所在位置的线。