利用给定的控制点，使用贝塞尔曲线和曲面建模的方法生成的茶壶。并添加了光照和倒影及阴影。程序中附操作说明。-The use of a given control point, use the Bezier curve and surface modeling methods to generate the teapot. And add a light and shadow and reflection. Program operatin

四片贝塞尔曲面构建的球体，便于后续的分析计算(A sphere constructed of four slices of Bessel surface is convenient for subsequent analysis and calculation)