用VB写的DataGridView控件重写类，实现了DataGridView的多重表头设置，效果不错。亲测通过。只需将作为组件添加到窗体中，设置其Tree属性即可实现多重表头。-VB write rewrite class DataGridView control to achieve a multi-meter set DataGridView, good results. Pro-test passed. Simply add a component to the form, set its