check.py 库函数验证结果
network_simplex.py 网络单纯形法求解最优传输问题
sinkhorn.py sinkhorn法求解最优传输问题

参考文献：
Peyré, Gabriel, and Marco Cuturi. "Computational optimal transport: With applications to data science." Foundations and Trends® in Machine Learning 11.5-6 (2019): 355-607.