Vb创建TreeView节点，并实现节点的拖拽，鼠标选中一个节点后，按下鼠标左键移动节点，可将节点拖动到指定的节点下，在TreeView中，这是一种增强的用法，可拖动的树形菜单控件，以此为参考。源码简单，适合初学者。-Vb create TreeView nodes and nodes to achieve drag the mouse to select a node, press the left mouse button to move the node, the node can be dragged to the specified node in the TreeView, which is an enhanced usage, can be drag the tree menu control, as a reference. Source simple, suitable for beginners.