该程序实现了颜色渐变进度条，可显示进度百分比，自定义颜色-The program implements the color gradient progress bar will show the progress of the percentage of custom colors

自定义扩展CProgressCtrl控件功能，在显示进度时可以设置进度条的颜色。-Custom extensions CProgressCtrl control function, you can set the display the progress of the progress bar color.