如何将字符串解析为Term（MSF）以定义约束？ [英] How to parse a string to a Term (MSF) to define a constraint?

问题描述

大家好，我有问题，我帮忙了！

Hi guys, i have a problem and i new your help!

首先，我不是专家开发人员。我正在开发一个解决线性编程问题的软件解决方案，但是我尝试它是通用的，为此，从文本框到ArrayList捕获de Constraint，现在，我没有如何将它解析为Term
做出约束！

First of all, I'm noy an expert developer. I'm developing a software solution to solve linear programming problems, but y try to it works generic, for that, y capture de Constraint from a textboxes to an ArrayList, now, i don't have how to parse it to Term to make a Constraint!

请帮助我!!!

示例：

// Asuming that "vz" and "sa" decisions already exists
string myLimits = "0 <= vz <= 9000, 0 <= sa <= 6000";
string myConstraint = "0.3 * sa + 0.4 * vz >= 2000, 0.4 * sa + 0.2 * vz >= 1500, 0.2 * sa + 0.3 * vz >= 500";

// Now create the constraints
model.AddConstraints("limits",myLimits);
model.AddConstraints("production",myConstraints);

但是我有一个错误："无法从字符串转换为Term"而

But I have an error: "Cannot convert from string to Term"

推荐答案

如果要将约束添加为字符串，则需要一次将它们添加到模型中。使用此方法：

If you want to add constraints as strings you will need to add them to the model one at a time. Use this method:

http：// msdn .microsoft.com / zh-CN / library / ff526477（v = vs.93 ）

字符串必须是OML - 阅读文档或教程以获取更多信息。

The string needs to be OML - read the documentation or tutorials for more.

Nate

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