熟练运用mfc绘制各种曲线，包括正弦曲线，余弦曲线等等，要熟练运用mfc。注意变成中所碰到的各种问题-Mfc Drawing skillfully use a variety of curves, including the sine curve, cosine curve and so on, it is necessary to skillfully use mfc. Medium attention into the various problems faced by