用汇编EMU8086编写的图形模式下的放大菜单。菜单内可以先择画三个图形（可以画圆，三角形，椭圆），是按打点的形式画出的图形，自编的打点函数。每个图形可以按+ -号放大缩小-Written in assembler EMU8086 graphics mode to enlarge the menu. Can first select in the menu draw three graphics (draw a circle, triangle, oval), is drawn according to RBI in the form of graphics, composing a function of the RBI. Each graph can press+- No. zoom. .