MFC基本控件使用示例，包括：简单的点，线，面绘图，对话框控件，颜色对话框，字体对话框，状态栏，工具栏，进度栏，显示当前鼠标坐标，显示当前系统时间-MFC basic controls use the sample, including: simple point, line, surface graphics, dialog box control, color dialog, font dialog box, the status bar, tool bar, progress bar, d