高级编程技术 介绍如何利用 TC 系统所提供的相关函数实现菜单设计、图形绘制、动画的播放、乐曲 的演奏、汉字的显示、图片的显现等技术，在讲述时，以问题-解答的方式来逐渐阐明。 1 文本的屏幕输出和键盘输入........................................................................................... 1 1.1 文本的屏幕输出..........................................

Summary-In this paper a theory of two-dimensional moment invariants for planar geometric figures is presented. A fundamental theorem is established to relate such moment invariants to the well- known algebraic invariants. Complete systems of moment