程序在DOS下运行，需要包含<graphics.h>, <conio.h>, <cmath>头文件。绘图速度较慢，但精确度高，可进行任意位置的放大缩小。

算法是本程序的核心内容，一切的绘图都建立在这个基础之上。Julia, Mandelbrot, Newton三个绘图函数各有不同的算法，对于每一种情况要分类讨论。程序要进行放大、缩小，需要对程序中的每个点的计算加上一些参数，使放大缩小正确运行。

主函数包含print函数，print函数包含color系列函数。-Program runs under DOS, you need to include the <graphics.h>, <conio.h>, <cmath> header file. Drawing slower, but accuracy may be made at any zoom position.

Algorithm is the core of this program, all drawings are built on this foundation. Julia, Mandelbrot, Newton drawing functions have three different algorithms for each case to be classified discussions. Program To zoom in, zoom out, need to calculate each point in the program to add some parameters to zoom correctly.

The main function contains the print function, print function contains color family of functions.