c# 反射的用法(非原創)

      在網上尋找了不少的資料，可以說大同小異，概念性的東西網上一搜一堆，
今天把反射的東西整理了一下,供大家使用,我保證我這裡是最全面的東西,當然也是基礎的東西,
在學好了這一切的基礎上,大家可以學習反射的具體外掛程式等應用,老鳥就不用看了.
首先我們建立一個類庫,將它產生為HelloWorld.dll

using System;

 namespace Webtest
 ...{

    public interface interface1
     ...{
          int add();
    
     }
     public class ReflectTest:interface1
     ...{
        
         public String Write;
         private String Writec;

         public String Writea
         ...{
             get
             ...{
                 return Write;
             }
             set
             ...{
                 Write = value;
             }
        
         }

         private String Writeb
         ...{
             get
             ...{
                 return Writec;
             }
             set
             ...{
                 Writec = value;
             }

         }

          public ReflectTest()
          ...{
              this.Write = "Write";
              this.Writec = "Writec";
          }

         public ReflectTest(string str1,string str2)
         ...{
             this.Write = str1;
             this.Writec = str2;
         }

         public string WriteString(string s,int b)
         ...{
             return "歡迎您，" + s + "---" + b; ;
         }

          public static string WriteName(string s)
          ...{
             return "歡迎您光臨，" + s;
          }

         public string WriteNoPara()
         ...{
            return "您使用的是無參數方法";
         }

         private string WritePrivate()
         ...{
             return "私人類型的方法";
         }

         public int add()
         ...{
             return 5;
         }
     }
}

然後,建立再建立一個項目引入該HelloWorld.dll

using System;

using System.Threading;
using System.Reflection;

class Test
...{
    delegate string TestDelegate(string value,String value1);
    static void Main()
    ...{
        //Assembly t = Assembly.LoadFrom("HelloWorld.dll"); 與下面相同的效果
        Assembly t = Assembly.Load("HelloWorld");

//**********************************************************************    
       foreach (Type aaa in t.GetTypes())
       ...{
            //Console.Write(aaa.Name);   //顯示該dll下所有的類
        }

//**********************************************************************
        Module[] modules = t.GetModules();

        foreach (Module module in modules)
        ...{
            //Console.WriteLine("module name:" + module.Name);//顯示模組的名字本例為"HelloWorld.dll"
        }

//**********************************************************************
        Type a = typeof(Webtest.ReflectTest);//得到具體的類的類型,和下面一個效果
        //Type a = t.GetType("Webtest.ReflectTest");//
        //Console.Write(a.Name);

//**********************************************************************
        string[] bb =...{ "aaaa", "bbbbb" };
        object obj = Activator.CreateInstance(a,bb); //建立該類的執行個體,後面的bb為有參建構函式的參數
        //object obj = t.CreateInstance("Webtest.ReflectTest");//與上面方法相同

//**********************************************************************       
        MethodInfo[] miArr = a.GetMethods();
        foreach (MethodInfo mi0 in miArr)
       ...{
            //Console.Write(mi0.Name);  //顯示所有的共有方法
       }

//**********************************************************************
        MethodInfo mi = a.GetMethod("WriteString");//顯示具體的方法
        object[] aa=...{"使用的是帶有參數的非靜態方法",2};
        string s = (string)mi.Invoke(obj,aa); //帶參數方法的調用

        MethodInfo mi1 = a.GetMethod("WriteName");
        String[] aa1 =...{"使用的是靜態方法"};
        string s1 = (string)mi1.Invoke(null, aa1); //靜態方法的調用

        MethodInfo mi2 = a.GetMethod("WriteNoPara");
        string s2 = (string)mi2.Invoke(obj, null); //不帶參數的方法調用

        MethodInfo mi3 = a.GetMethod("WritePrivate",BindingFlags.Instance | BindingFlags.NonPublic);
        string s3 = (string)mi3.Invoke(obj, null); //私人類型方法調用

        //Console.Write(s3);

//**********************************************************************
        PropertyInfo[] piArr = a.GetProperties(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
        foreach (PropertyInfo pi in piArr)
        ...{
         //Console.Write(pi.Name);  //顯示所有的屬性
        }

//**********************************************************************
        PropertyInfo pi1=a.GetProperty("Writea");
        //pi1.SetValue(obj, "Writea", null);
        //Console.Write(pi1.GetValue(obj,null));

        PropertyInfo pi2 = a.GetProperty("Writeb", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
        pi2.SetValue(obj, "Writeb", null);
        //Console.Write(pi2.GetValue(obj, null));

        FieldInfo fi1 = a.GetField("Write");
        //Console.Write(fi1.GetValue(obj));

//**********************************************************************
        ConstructorInfo[] ci1 = a.GetConstructors();
        foreach (ConstructorInfo ci in ci1)
        ...{
            //Console.Write(ci.ToString()); //獲得建構函式的形式
        }

        ConstructorInfo asCI = a.GetConstructor(new Type[] ...{ typeof(string), typeof(string) });
        //Console.Write(asCI.ToString());

//**********************************************************************
        Webtest.interface1 obj1 = (Webtest.interface1)t.CreateInstance("Webtest.ReflectTest");
        Webtest.ReflectTest obj2 = (Webtest.ReflectTest)t.CreateInstance("Webtest.ReflectTest");
        //Console.Write(obj1.add());典型的原廠模式

//**********************************************************************
        foreach (Type tt in t.GetTypes())
        ...{
            if (tt.GetInterface("interface1")!=null)
            ...{
                Webtest.interface1 obj3 = (Webtest.interface1)Activator.CreateInstance(a);
                //Console.Write(obj3.add());
            }
        }

//**********************************************************************
        TestDelegate method = (TestDelegate)Delegate.CreateDelegate(typeof(TestDelegate), obj, "WriteString");
       //動態建立委託的簡單例子
        //Console.Write(method("str1", 2));

//**********************************************************************
        ConstructorInfo asCI1 = a.GetConstructor(new Type[0]);
        Webtest.ReflectTest obj5 = (Webtest.ReflectTest)asCI1.Invoke(null);
            //通過無參建構函式執行個體化的方法
        //Console.Write(obj5.Writea);

        ConstructorInfo asCI2 = a.GetConstructor(new Type[] ...{ typeof(string), typeof(string) });
          //通過有參建構函式執行個體化的方法
        Webtest.ReflectTest obj6 = (Webtest.ReflectTest)asCI2.Invoke(bb);
        Console.Write(obj6.Writea);
//**********************************************************************

        Console.Read();
    }  
}