c# - Printout Constraints and Objective Function using Gurobi C# interface

Question

Given a model, how to printout

1. all added constraints
2. its objective function?

in C#?

Says

GRBVar newVar=model.AddVar(0.0, 1.0, 0.0, GRB.BINARY, "newvar");
model.AddConstr(newVar<=1,"newConstraint");
model.SetObjective(newVar*2,GRB.MAXIMIZE);

//Printout all constraint in the model(suppose to be newVar<=1)
//Printout model objective function (suppose to be newVar*2)

How do I achieve what is in the comments? Thanks.

Answer 1

我认为没有简单的方法，但是您可以使用model.write("model.lp")然后读取文件并将其写入控制台。

否则我认为你必须通过迭代约束来自己构造字符串。

您可以在此处阅读有关如何从约束中提取属性的 信息。