利用C语言编写 能够画出任意斜率的直线算法程序(利用中点画线法改编...答:void CDDAView::OnDraw(CDC* pDC){ CDDADoc* pDoc = GetDocument();ASSERT_VALID(pDoc);int xx,yy,x2,y2,m,n;float dx,dy,k,x,y;int x0=50,y0=500,x1=50,y1=50;if(x0>x1){ m=x0;x0=x1;x1=m;m=y0;y0=y1;y1=m;} dx=x1-x0;dy=y1-y0;k=dy/dx;if(x0==x1){ ...