绘制Mandelbrot image即曼德拉图像。Mandelbrot图像中的每个位置都对应于公式N=x+y*i中的一个复数。其实数部分是x，虚数部分是y，i是-1的平方根。图像中各个位置的x和y坐标对应于虚数的x和y部分。

图像中的每个位置用参数N来表示，它是x*x+y*y的平方根。如果这个值大于或等于2，则这个数字对应的位置值是0。如果参数N的值小于2，就把N的值改为N*N-N（N=（x*x-y*y-x）+（2*x*y-y）*i）），并再次测试这个新N值。如果这个值大于或等于2，则这个数字对应的位置值是1。这个过程一直继续下去，直到我们给图像中的位置赋一个值，或迭代执行的次数多于指定的次数为止。

程序功能：可用鼠标选择放大区域，无限放大次数-Draws Mandelbrot image that Mandela images. Mandelbrot each position in the image corresponds to the formula N = x+y* i in a complex. Real part be x, and the imaginary part y, i is the square root of-1. Each position in the image corresponding to the coordinates x and y of the imaginary part of x and y. Each position in the image expressed with the parameter N, which is x* x+y* y square root of If this value is greater than or equal to 2, then the number corresponding to the position value is 0. If the parameter value of N is less than two, put the value of N to N* NN (N = (x* xy* yx)+ (2* x* yy)* i)), and again test the new N value. If this value is greater than or equal to 2, then the number corresponding to the position value is 1. This process continues until we give the position of the image assigned a value or number of iterations performed more than the specified number of times so far. Program features: Available mouse to select the zoom area, the number of infinite zoom