精确黎曼解求解程序，中国科学院李新亮老师在计算流体力学课程里面的例程-a FORTRAN program for exact Riemamm solution

精确黎曼解，中科院李新亮老师授课用，可求解该问题-Exact Riemann solution, Chinese Academy of Sciences Li XL teachers to teach with, the problem can be solved