定義一個類：
namespace Example
{
public class ExampleClass
{
 public int iID = 0;
 public string strName = "";
 public ExampleClass()
 {
  iID = 1;
  strName = "Example"; 
 }

 public ExampleClass(int ID,string Name)
 {
  iID = ID;
  strName = Name; 
 }
}
}

例項化物件：需要引用 useing System.Reflection;
//通過類名獲取類的型別
Type tp = Type.GetType("Example.ExampleClass");  //需要帶上名字空間

//不帶引數的情況--------------------
//獲取類的初始化引數資訊
ConstructorInfo ct1 = tp.GetConstructor(System.Type.EmptyTypes);
//呼叫不帶引數的構造器
ExampleClass Ex1 = (ExampleClass)ct1.Invoke(null);
MessageBox.Show("ID = " + Ex1.iID.ToString() + "; Name = " + Ex1.strName);
//將輸出： ID = 1; Name = Example

//帶引數的情況
//定義引數型別陣列
Type[] tps = new Type[2];
tps[0] = typeof(int);
tps[1] = typeof(string);
//獲取類的初始化引數資訊
ConstructorInfo ct2 = tp.GetConstructor(tps);

//定義引數陣列
object[] obj = new object[2];
obj[0] = (object)100;
obj[1] = (object)"Param Example";

//呼叫帶引數的構造器
ExampleClass Ex2 = (ExampleClass)ct2.Invoke(obj);
MessageBox.Show("ID = " + Ex2.iID.ToString() + "; Name = " + Ex2.strName);
//將輸出： ID = 100; Name = Param Example