重绘SSTab控件2.0，老代码重构，加入了脏区域处理，无窗口控件重绘，UpDown控制按钮，修复GDI句柄泄露的BUG；-Redraw SSTab controls 2.0, old code refactoring, joined the dirty area treatment, no window control to redraw, UpDown control button, repair the GDI handle leak BUG

Grid 控件，MFC模块中的表格控件。用来处理经典模块中的各种关于表格的问题，封装的很好-Grid Control, MFC module form controls. Classic module to handle various issues concerning the form, packaged well