利用马斯京根河道演算方法对河道进行洪水演算，使用相关迭代法求出下游的解-The use of the river Muskingum River flood calculation method for calculation, the solution is obtained using the iterative method related downstream

马斯京根法的matlab版本，带有算例。(The matlab version of Mastin's root method has an example.)