用vc编写的关于人体界面曲线的问题，主要帮助大家了解关于界面编成的要点及好处。通过此例大家可以进一步了解关于界面编程的优势。-vc prepared with the human interface curve on the issue, mainly to help us all understand the composition of the interface elements and benefits. Through this case we can further understa