C#中Assembly类的使用小结

 using System.Reflection;
 ​
 // 1. 获取当前程序集
 Assembly asm1 = Assembly.GetExecutingAssembly();
 ​
 // 2. 通过名称加载（需已存在于应用程序域）
 Assembly asm2 = Assembly.Load("System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089");
 ​
 // 3. 从文件加载
 Assembly asm3 = Assembly.LoadFrom(@"C:\MyLibs\MyLibrary.dll");
 ​
 // 4. 获取入口程序集
 Assembly entryAsm = Assembly.GetEntryAssembly();

 Assembly asm4 = typeof(MyClass).Assembly;

Console.WriteLine(asm1.FullName);           // "MyApp, Version=1.0.0.0,        Culture=neutral, PublicKeyToken=null"
Console.WriteLine(asm1.Location);           // "C:\MyApp\bin\Debug\MyApp.exe"
Console.WriteLine(asm1.ImageRuntimeVersion);// "v4.0.30319"

 Type[] allTypes = asm1.GetTypes();
 foreach (Type t in allTypes)
 {
     Console.WriteLine(t.FullName);
 }
 ​
 Type myType = asm1.GetType("MyNamespace.MyClass");

// 创建无参实例
 object obj = asm1.CreateInstance("MyNamespace.MyClass");
 ​
 // 创建带参数的实例
 object obj2 = asm1.CreateInstance(
     "MyNamespace.MyClass", 
     false, 
     BindingFlags.Default, 
     null, 
     new object[] { 42, "hello" }, 
     null, 
     null);

// 获取程序集的 AssemblyTitle 特性
 var titleAttr = asm1.GetCustomAttribute<AssemblyTitleAttribute>();
 Console.WriteLine(titleAttr?.Title);

 // 列出所有嵌入资源
 string[] resources = asm1.GetManifestResourceNames();    //获取程序集中所有嵌入资源的名称
 foreach (string res in resources)
 {
     Console.WriteLine(res);
 }
 ​
 // 读取文本资源
 using (Stream stream = asm1.GetManifestResourceStream("MyApp.Resources.Config.xml"))
 using (StreamReader reader = new StreamReader(stream))
 {
     string content = reader.ReadToEnd();
 }

using System;
 using System.Reflection;
 ​
 public class Program
 {
     public static void Main()
     {
         // 1. 从文件加载程序集
         Assembly pluginAsm = Assembly.LoadFrom(@"C:\Plugins\Calculator.dll");
 ​
         // 2. 获取类型
         Type calcType = pluginAsm.GetType("CalculatorLib.Calculator");
         if (calcType == null)
         {
             Console.WriteLine("类型未找到");
             return;
         }
 ​
         // 3. 创建实例
         object calculator = Activator.CreateInstance(calcType);
         // 或使用 assembly.CreateInstance:
         // object calculator = pluginAsm.CreateInstance("CalculatorLib.Calculator");
 ​
         // 4. 调用方法
         MethodInfo addMethod = calcType.GetMethod("Add", new Type[] { typeof(int), typeof(int) });
         int result = (int)addMethod.Invoke(calculator, new object[] { 3, 5 });
         Console.WriteLine($"3 + 5 = {result}");
 ​
         // 5. 读取程序集特性
         var versionAttr = pluginAsm.GetCustomAttribute<AssemblyFileVersionAttribute>();
         Console.WriteLine($"插件版本: {versionAttr?.Version}");
     }
 }