迎风差分格式、lax-Wendroff差分格式等样例，还附有图形等-Upwind difference scheme, lax-Wendroff difference scheme, such as sample, but also with graphics, etc.

利用Lax-wendroff两步差分格式求解一维激波管问题Fortran语言-Use a two-step Lax-wendroff Difference Scheme for Solving the one-dimensional shock tube problem Fortran language