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開(kāi)發(fā)時(shí)有時(shí)會(huì )遇到一些需要實(shí)例化指定名稱(chēng)的類(lèi)，這個(gè)時(shí)候要用到反射來(lái)實(shí)現了?？梢詤⒄障旅娴目刂婆_示例：

需要實(shí)例化的類(lèi)：

Class1.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace shilihua
{
    public class Class1
    {
        private string field;

        public string demo1 = "123";
        public string demo2 = "abc";

        public string ReturnValue
        {
            set { field = value; }
            get { return field; }
        }

        public void show()
        {
            Console.WriteLine("指定名稱(chēng)實(shí)例化的類(lèi)的方法");
        }
    }
}
 

Program.cs

using System;
using System.Collections.Generic;
using System.Text;

//引用的
using System.Reflection;

namespace shilihua
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("當前程序集：" + System.Reflection.Assembly.GetEntryAssembly().GetName().Name);

            Class1 myclass = new Class1();
            myclass.ReturnValue = "13";
            Console.WriteLine(myclass.ReturnValue);
            Console.WriteLine("demo1==>"+myclass.demo1);
            Console.WriteLine("demo2==>" + myclass.demo2);
            myclass.show();

            Assembly asse = Assembly.Load(System.Reflection.Assembly.GetEntryAssembly().GetName().Name);//獲得程序集
            Type type = asse.GetType(System.Reflection.Assembly.GetEntryAssembly().GetName().Name+".Class1");//class1是指定的類(lèi)名
            //將得到的類(lèi)型傳給一個(gè)新建的構造器類(lèi)型變量
            ConstructorInfo constructor = type.GetConstructor(new Type[0]);
            //使用構造器對象來(lái)創(chuàng )建對象
            object obj = constructor.Invoke(new Object[0]);
            //輸出對象類(lèi)型
            Console.WriteLine(obj);

            //調用實(shí)例化實(shí)體的字段
            FieldInfo[] f = type.GetFields();
            Console.WriteLine("FieldInfo total ==>" + f.Length);
            foreach (FieldInfo temp in f)
            {
                Console.WriteLine("field.Name==>" + temp.Name);
                if (temp.Name.Equals("demo1"))
                {
                    temp.SetValue(obj, "456");//設置字段的值
                }
                Console.WriteLine(temp.Name+"字段的值==>" + temp.GetValue(obj));
            }

            //調用實(shí)例化實(shí)體的屬性
            PropertyInfo[] props = type.GetProperties();
            Console.WriteLine("PropertyInfo total=" + props.Length);
            foreach (PropertyInfo var in props)
            {
                if (var.Name.Equals("ReturnValue"))
                {
                    Console.WriteLine(var.Name);
                    Console.WriteLine("屬性初始值==>"+var.GetValue(obj, null));
                    var.SetValue(obj, "嘗試動(dòng)態(tài)實(shí)例化設置屬性", null);
                    Console.WriteLine("變更后的屬性值==>"+var.GetValue(obj, null));
                }
            }

            //調用實(shí)例化實(shí)體的方法
            MethodInfo[] meth = type.GetMethods();
            Console.WriteLine("MethodInfo total=" + meth.Length);
            foreach (MethodInfo var in meth)
            {
                if (var.Name.Equals("show"))
                {
                    Console.WriteLine("調用實(shí)例化類(lèi)的方法");
                    var.Invoke(obj, null);
                }
            }
        }
    }
}