C#之反射

 

Assembly assembly = Assembly.Load("PeopleDal");
//获取程序集名称
Module[] modules = assembly.GetModules();
foreach (var item in modules)
{
    Console.WriteLine(item.Name);
}
//获取程序集类名
Type[] types = assembly.GetTypes();
foreach (var item in types)
{
    Console.WriteLine(item.Name);
}

//注意：程序集名称需要拷贝到当前项目的\bin\Debug目录下
//加载程序集，Load里面写程序集名称
Assembly assembly = Assembly.Load("PeopleDal");
//获取程序集实例，GetType里面写“命名空间”加上“.类名”
Type type = assembly.GetType("PeopleDal.People");
//创建该类型的实例并类型转换
IHelper iHelper = Activator.CreateInstance(type) as IHelper;
//调用该类型的方法
iHelper.SayHi();

//配置文件方法读取并创建实例、调用方法
string helperConfig = ConfigurationManager.AppSettings["Helper"];
Assembly assembly = Assembly.Load(helperConfig.Split(',')[0]);
Type type = assembly.GetType(helperConfig.Split(',')[1]);
IHelper iHelper = Activator.CreateInstance(type) as IHelper;
iHelper.SayHi();
Console.ReadKey();