从先验概率中采样，计算权重，基于matlab GUI界面设计,使用大量的有限元法求解偏微分方程，毕业设计有用，PLS部分最小二乘工具箱,在matlab环境中自动识别连通区域的大小。- Sampling　a priori probability, calculate the weight, Based on matlab GUI interface design, Using a large number of finite element method to solve partial differential equations, Graduation useful PLS PLS toolbox, Automatic identification in the matlab environment the size of the connected area.