编写程序.使PC机显示一个三角形。对于图形设计，要通过BIOS INT 10H调用，用菜单选择三角形的输出。三角形可分割为3条直线，因此显示三角形就可分解为根据两点画直线的程序。-Programming. The PC, displays a triangle. For graphic design, to be called by BIOS INT 10H, the output of a triangle with a menu selection. Triangle can be divided into three lines, thus indicating a triangle can be decomposed into a straight line drawn under the two procedures.