计算文件的熵值，熵值是判断一个文件是否加壳加压的重要判别方法-Calculate the entropy of documents, the entropy value is to determine whether a file important packers Pressure Checking Method

用有限体积法计算结构网格下的对流扩散程序，用adi方法求解。-Structure with finite volume method for convection-diffusion process under the grid, with adi Solving