这是一个窗体选项卡，它的外观和功能与Excel中的Sheet标签非常相似，大家见过最多的莫非是选项卡在窗体上部显示，而空上却是在下部显示，而且它的形状不是方方正正的，而是带点圆滑的感觉，其实外形并不重要，重要的是它为窗体节省了不少空间，而且也使软件变得易于操作。-This is a form tab, and its appearance and function with Excel is very similar to the Sheet tab, Do we have seen the most is the upper tab in the form shown, the air is on display in the lower part, and it The shape is not square-shaped, but feel a little slick, in fact, shape is not important, important is that it saves a lot of space for the form, but also makes software simple to operate.