c# 执行动态编译的方法实例详解

using System;
using System.CodeDom.Compiler;
using Microsoft.CSharp;
public class Program
{
    public static void Main()
    {
        // 创建一个CSharpCodeProvider实例
        CSharpCodeProvider provider = new CSharpCodeProvider();
        // 设置编译参数
        CompilerParameters parameters = new CompilerParameters();
        parameters.GenerateInMemory = true;
        parameters.ReferencedAssemblies.Add("System.dll");
        // 创建要编译的代码字符串
        string code = @"
            using System;
            namespace DynamicCompileExample
            {
                public class HelloWorld
                {
                    public void SayHello()
                    {
                        Console.WriteLine(""Hello, World!"");
                    }
                }
            }
        ";
        // 编译代码
        CompilerResults results = provider.CompileAssemblyFromSource(parameters, code);
        // 如果编译出现错误
        if (results.Errors.HasErrors)
        {
            foreach (CompilerError error in results.Errors)
            {
                Console.WriteLine("Error: {0}", error.ErrorText);
            }
            return;
        }
        // 创建编译好的程序集的实例并执行
        var helloWorldType = results.CompiledAssembly.GetType("DynamicCompileExample.HelloWorld");
        var helloWorldInstance = Activator.CreateInstance(helloWorldType);
        var sayHelloMethod = helloWorldType.GetMethod("SayHello");
        sayHelloMethod.Invoke(helloWorldInstance, null);
    }
}

using Microsoft.CodeAnalysis.CSharp.Scripting;
using Microsoft.CodeAnalysis.Scripting;
using System;
public static void Main()
{
    string code = "int result = 1 + 2; Console.WriteLine(result);";
    var options = ScriptOptions.Default.WithImports("System");
    var script = CSharpScript.Create(code, options);
    script.RunAsync().Wait();
}

using IronPython.Hosting;
using Microsoft.Scripting.Hosting;
using System;
public static void Main()
{
    var engine = Python.CreateEngine();
    string code = "print(1 + 2)";
    var scope = engine.CreateScope();
    engine.Execute(code, scope);
    Console.ReadLine();
}

using Jurassic;
using System;
public static void Main()
{
    var engine = new ScriptEngine();
    string code = "var result = 1 + 2; console.log(result);";
    engine.Execute(code);
    Console.ReadLine();
}