一维CFD问题的显示差分格式求解,FTCN格式，采用时间推进显示求解，边界节点信息作为边界条件。对于BTCN和CNCS方法，采用追赶法解方程组的方式隐式求解-One-dimensional CFD display difference scheme for solving the problem, FTCN format, using the time to promote shows solving boundary node information as boundary conditions. For BTCN and CNCS method, using catch-up method for solving equations of the way implicit solver