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该程序使用Python编写，旨在使用有限差分法解决一维扩散方程。它将求解区域划分为差分网格，并使用有限数量的网格点来代替连续的求解域。程序将待求解的流动变量存储在每个网格点上，并使用差商来近似偏微分方程中的微分项，从而将偏微分方程转化为 ...