本程序为汇编语言实现的字符图形程序。1)制作一个图形元素表，表中将所需的各种字符图形编上号码，并用存储器映射法将其显示在屏幕的左上部分；

2)将光标定位在屏幕的右半部分画图区，上、下、左、右光标控制键控制光标在四个方向的移动，不显示其轨迹，同时要控制光标位置不超出画图区的边界；

3)当按动某一数字键时，在光标位置处显示出相应编号的字符图形，然后移动光标，再显示下一个图形，最后绘制出一幅由字符组成的图形。

4)按动ESC键，退出程序，返回DOS。

-procedures for the compilation of language of the characters in the program. 1) Make a graphic elements table, will be required for the various characters on the series graphics numbers, and memory mapping method used to show in the upper left part of the screen; 2) positioning of the cursor on the screen to the right part drawing, upper and lower, left and right cursor control keys to control the cursor in four directions of movement, did not display its trajectory, taking control of the cursor position within the drawing borders; 3) When pressed a key figure, Office location of the cursor shows that the numbers of the corresponding character graphics, then move the cursor, and then showed a graphic, Finally drawn from a composition of the graphic characters. 4) Press the ESC key to exit