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在Visual C中运行时编译#

compilation properties string c#

Pikachu620 · 技术社区 · 6 年前

我正在学习在运行时使用 CSharpCodeProvider , CompilerParameters , CompilerResults 诸如此类。

我能够得到字符串的内容通过一种方法。

public static string Test()    //This is in the file to be compiled.
{
    return "This is a test string!";
}

使用

MethodInfo main = program.GetMethod("Test");    //This is in the main program.
//program is a Assembly Type generated in another part of the program.
str=main.Invoke(null, null).ToString();

去拿绳子。

我怎样才能直接拿到绳子?例如

public string str="This is a test string!";    //This is in the file to be compiled.

我试着把字符串变成一种属性并加以使用 GetProperty("str"); ,但它得到的只是名称财产的所有权。 str ,我不知道怎样才能拿到 所容纳之物 绳子的长度。 这是一个测试字符串! .

以下是代码:

using System.IO;
using System.CodeDom.Compiler;
using Microsoft.CSharp;
using System.Reflection;

namespace MudOS
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            CSharpCodeProvider provider = new CSharpCodeProvider();
            CompilerParameters parameters = new CompilerParameters();

            parameters.ReferencedAssemblies.Add("System.Windows.Forms.dll");
            parameters.GenerateInMemory = true;
            parameters.GenerateExecutable = true;

            string str = File.ReadAllText(Directory.GetCurrentDirectory() + @"\MudLib\Test.c");
            CompilerResults results = provider.CompileAssemblyFromSource(parameters, str);

            if (results.Errors.HasErrors)
            {
                MessageBox.Show("Compiling error!");
                return;
            }
            Assembly assembly = results.CompiledAssembly;
            Type program = assembly.GetType("MudOS.Test");
            MethodInfo main = program.GetMethod("Test");
            resultString=main.Invoke(null, null).ToString();
            MessageBox.Show(resultString);

            PropertyInfo pinfo = program.GetProperty("str");
            MessageBox.Show(pinfo.Name.ToString());
            //I want the CONTENT of the string, not the NAME.
        }
    }
}

下面是运行时要编译的文件:Test。C

using System.Windows.Forms;

namespace MudOS
{
    class Test
    {
        public string testStr="This is a test string!";
        //I would like to know if it's possible to get this string directly.

        public string str
        {
            get{ return "This is a test string!"; }
            //I was unable to get this content.
        }

        public static void Main()
        {
        }

        public static string Test()
        {
            return "This is a test string!";
            //I was able to get this content just fine.
        }
    }
}

2 回复 | 直到 6 年前

Héctor M. 6 年前

试试这个:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Reflection;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var type = typeof(MethodContainer);
            var method = type.GetMethod("MyMethod");
            var mc = new MethodContainer();
            string result = (string)method.Invoke(mc, null);
            Console.WriteLine(result); //Output: This is a test
        }
    }

    public class MethodContainer
    {
        public string MyMethod()
        {
            return "This is a test";
        }
    }
}

更新:

您必须获取类型( typeof(Your_Clas) )然后使用 GetMethod()

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Reflection;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            MethodInfo method = typeof(Program).GetMethod("MyMethod");
            string result = (string)method.Invoke(null, null);
            Console.WriteLine(result);

        }

        public static string MyMethod()
        {
            return "LOL";
        }
    }        
}

Giorgi Chkhikvadze 6 年前

program.getField("testStr").getValue(null).

从程序集中获取类型后,请尝试此方法。