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C#通過腳本實(shí)現(xiàn)接口的示例詳解

更新時(shí)間：2025年05月16日 10:59:00 作者：PascalMing

以前C#腳本用的委托注入模式,今天在提示下,嘗試用腳本直接實(shí)現(xiàn)接口,然后C#可以動(dòng)態(tài)或指定新類型創(chuàng)建接口實(shí)現(xiàn)對(duì)象,下面我們就來試一下吧

以前C#腳本用的委托注入模式，今天在提示下，嘗試用腳本直接實(shí)現(xiàn)接口，然后C#可以動(dòng)態(tài)或指定新類型創(chuàng)建接口實(shí)現(xiàn)對(duì)象。從代碼角度看，稍顯復(fù)雜，但腳本方面顯得更簡(jiǎn)潔和有條理。

引用包需要Microsoft.CodeAnalysis、Microsoft.CodeAnalysis.Common等，其他自動(dòng)添加：

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Humanizer.Core" version="2.14.1" targetFramework="net472" />
  <package id="Microsoft.Bcl.AsyncInterfaces" version="8.0.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.Analyzers" version="3.11.0" targetFramework="net472" developmentDependency="true" />
  <package id="Microsoft.CodeAnalysis.Common" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.CSharp" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.CSharp.Scripting" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.CSharp.Workspaces" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.Scripting.Common" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.VisualBasic" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.VisualBasic.Workspaces" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CodeAnalysis.Workspaces.Common" version="4.13.0" targetFramework="net472" />
  <package id="Microsoft.CSharp" version="4.7.0" targetFramework="net472" />
  <package id="System.Buffers" version="4.5.1" targetFramework="net472" />
  <package id="System.Collections.Immutable" version="8.0.0" targetFramework="net472" />
  <package id="System.Composition" version="8.0.0" targetFramework="net472" />
  <package id="System.Composition.AttributedModel" version="8.0.0" targetFramework="net472" />
  <package id="System.Composition.Convention" version="8.0.0" targetFramework="net472" />
  <package id="System.Composition.Hosting" version="8.0.0" targetFramework="net472" />
  <package id="System.Composition.Runtime" version="8.0.0" targetFramework="net472" />
  <package id="System.Composition.TypedParts" version="8.0.0" targetFramework="net472" />
  <package id="System.IO.Pipelines" version="8.0.0" targetFramework="net472" />
  <package id="System.Memory" version="4.5.5" targetFramework="net472" />
  <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net472" />
  <package id="System.Reflection.Metadata" version="8.0.0" targetFramework="net472" />
  <package id="System.Runtime.CompilerServices.Unsafe" version="6.0.0" targetFramework="net472" />
  <package id="System.Text.Encoding.CodePages" version="7.0.0" targetFramework="net472" />
  <package id="System.Threading.Channels" version="7.0.0" targetFramework="net472" />
  <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />
</packages>

接口定義如下：

namespace WindowsFormsApp1
{
    public interface IFlexiblePluginAgent
    {
        string RegistDrType();
    }
}

驗(yàn)證文件TextFile1.txt如下：

using System;
using System.Collections.Generic;
 
public class FlexiblePluginAgentProcessScriptXXXX : WindowsFormsApp1.IFlexiblePluginAgent
{
	public string RegistDrType()
	{
		return "scritp_drv";
	}
}

加載和驗(yàn)證代碼如下：

using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.Emit;
using Microsoft.CodeAnalysis;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
 
namespace WindowsFormsApp1
{
    internal static class Program
    {
        /// <summary>
        /// 應(yīng)用程序的主入口點(diǎn)。
        /// </summary>
        [STAThread]
        static void Main()
        {
            ScriptTest();
        }
        static void ScriptTest()
        {
            try
            {
                // 讀取外部代碼文件
                string codeFilePath = "TextFile1.txt";
                string sourceCode = File.ReadAllText(codeFilePath);
 
                var compilation = CSharpCompilation.Create("DynamicAssembly")
                    .WithOptions(new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary))
                    .AddReferences(MetadataReference.CreateFromFile(typeof(object).Assembly.Location))
                    .AddReferences(MetadataReference.CreateFromFile(typeof(IFlexiblePluginAgent).Assembly.Location))
                    .AddSyntaxTrees(CSharpSyntaxTree.ParseText(sourceCode));
 
                // 檢查編譯錯(cuò)誤
                var diagnostics = compilation.GetDiagnostics();
                if (diagnostics.HasAnyErrors())
                {
                    Console.WriteLine("編譯錯(cuò)誤:");
                    foreach (var diagnostic in diagnostics.Where(d => d.Severity == DiagnosticSeverity.Error))
                    {
                        Console.WriteLine(diagnostic.ToString());
                    }
                    return;
                }
 
                // 內(nèi)存中生成程序集
                using (var ms = new MemoryStream())
                {
                    EmitResult emitResult = compilation.Emit(ms);
 
                    if (!emitResult.Success)
                    {
                        Console.WriteLine("程序集生成失敗:");
                        foreach (var diagnostic in emitResult.Diagnostics.Where(d => d.Severity == DiagnosticSeverity.Error))
                        {
                            Console.WriteLine(diagnostic.ToString());
                        }
                        return;
                    }
 
                    ms.Seek(0, SeekOrigin.Begin);
                    Assembly assembly = Assembly.Load(ms.ToArray());
 
                    Console.WriteLine("---檢查程序集中是否有IFlexiblePluginAgent的派生類---");
                    var derivedTypes = assembly.DefinedTypes
                        .Where(t => typeof(IFlexiblePluginAgent).IsAssignableFrom(t) && !t.IsInterface)
                        .ToList();
 
                    if (derivedTypes.Any())
                    {
                        Console.WriteLine("找到以下IFlexiblePluginAgent的派生類:");
                        foreach (var type in derivedTypes)
                        {
                            Console.WriteLine($"  - {type.FullName}");
                        }
 
                        // 使用第一個(gè)派生類創(chuàng)建對(duì)象
                        Type agentType = derivedTypes.First().AsType();
                        IFlexiblePluginAgent agent = (IFlexiblePluginAgent)Activator.CreateInstance(agentType);
                        string result = agent.RegistDrType();
 
                        Console.WriteLine($"注冊(cè)的 DrType 是: {result}");
                    }
                    else
                    {
                        Console.WriteLine("未找到IFlexiblePluginAgent的派生類");
                    }
 
                    Console.WriteLine("---知道類名字直接調(diào)用---");
                    Type agentType2 = assembly.GetType("FlexiblePluginAgentProcessScriptXXXX");
                    if (agentType2 == null)
                    {
                        Console.WriteLine("未找到 MyPluginAgent 類型");
                        return;
                    }
 
                    IFlexiblePluginAgent agent2 = (IFlexiblePluginAgent)Activator.CreateInstance(agentType2);
                    string result2 = agent2.RegistDrType();
 
                    Console.WriteLine($"注冊(cè)的 DrType 是: {result2}");
 
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"發(fā)生錯(cuò)誤: {ex.Message}");
            }
        }
    }
    // 擴(kuò)展方法用于檢查診斷信息
    public static class DiagnosticExtensions
    {
        public static bool HasAnyErrors(this IEnumerable<Diagnostic> diagnostics)
        {
            return diagnostics.Any(d => d.Severity == DiagnosticSeverity.Error);
        }
    }
}

到此這篇關(guān)于C#通過腳本實(shí)現(xiàn)接口的示例詳解的文章就介紹到這了,更多相關(guān)C#接口內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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