实现渗流力学中的平面径向流公式计算，知多求一，计算结果会用红色字体显示。-Realization calculate seepage mechanics plane radial flow formula, known more for one, the results will be displayed in red font.

显示渗流理论，可以改变网格数量，显示最大联通面积，提取最大联通面积(It shows that the percolation theory can change the number of grids, display the largest Unicom area, and extract the largest Unicom area)