有没有将评估一个字符串并产生一个整数的方法（假设字符串是一个公式）在C＃ [英] Is there a method that will evaluate a string and produce an integer (assuming the string is an equation) in C#

问题描述

好吧，我知道，在Python中，假设你有一个名为

Okay, I know that in Python, say you had a string called

strExpression，它的价值是1 + 2-（3 * 5）

strExpression and it's value was "1+2-(3*5)"

有是一个Python方法（函数，对不起，我得到的术语混淆），将评估该字符串并返回一个数字整数值（在这种情况下，它应该返回-12。我不记得了Python语法，因为我在一门课程前一阵子做了（然后我打破了我的胳膊，不得不退出，因为我不能输入），但希望有人知道我是什么意思

There is a python method (function, sorry I get the terms confused) that will evaluate that string and return a numerical integer value (in this case, it should return -12. I don't recall the python syntax because I did it a while ago in a course (and then I broke my arm and had to quit because I couldn't type), but hopefully someone knows what I mean

有没有办法在C＃中做到这一点。

Is there a way to do this in C#

我只是学习，正在创建一个简单的计算器程序，我已经一个基本的，允许你添加到先前的数字，但我想扩展它有点为自己的利益。非常感谢您的任何帮助。

I am only learning, and am creating a simple calculator program, and I have made a basic one that allows you to add to the previous number, but I would like to extend it a bit for my own benefit. Thank you very much for any help.

推荐答案

您可以使用它暴露的所有客户端的Microsoft.JScript程序在C＃中的JavaScript函数

You can use the Microsoft.JScript which exposes all client side javascript functions in C#

using System;
using Microsoft.JScript;
using Microsoft.JScript.Vsa;

namespace JustTest
{
    class Program
    {
        static void Main(string[] args)
        {
            object value = Eval.JScriptEvaluate("1+2-(3*5)", VsaEngine.CreateEngine());
            Console.Write(value);
            Console.ReadLine();
        }
    }
}

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