由内到外螺旋旋转制作蜂巢 网上找了几个生成正六边形的代码基本上都由六边形的一个顶点开始计算下个顶点的位置,但是这样得到的正六边形不是很正。本代码得到正的蜂窝。-From the inside to the outside spiral rotation produced honeycomb online to find some code to generate a regular hexagon is basically by a vertex of the hexagonal calcu