针对黎曼问题间断解理论解编写的小程序，输入初始条件，调用函数得结果，非常方便。CFD初学者可用于检验程序。-Riemann problem for Discontinuous Solutions theoretical solution to prepare a small program, enter the initial conditions, the results of calling the function was very convenient. CFD can be used to test the program for beginners.