图形学综合性实验报告、代码：画直线、多边形(包括填充和非填充)、基本图形(包括矩形、圆、椭圆等)、曲线及通过调整控制顶点来改变曲线形状、实现几何变换以及真实感效果等-Graphics integrated experimental report code: painting straight lines, polygons (including the filling and non-filled), the basic graphics (including rectangular, round, oval, etc.), curve and by adjusting the control points to change the curve shape, the realization of geometric transformations as well as realistic effects