C# 反射

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今天上课加深了一下反射的学习

首先构建一个工程写几个对象来做测试，可以多写几个

    //具体内容（可以推出其他）    //接口    interface IAirLine    {        string PrintBoardingCheck();    }    //实现接口     class SouthAirLine : IAirLine    {        public string PrintBoardingCheck()        {            return "打印南航登记牌";        }    }

之后
将工程生成dll文件，引用到反射的工程中

    class Program    {        static void Main(string[] args)        {            Console.WriteLine("please input num");            RefectType ftype = new RefectType();            int i = Convert.ToInt32(Console.ReadLine());            Program pr = new Program();            string _select = pr.convertToClassName(i);            Console.WriteLine("please input your name");            string pasName = Console.ReadLine();            string print = ftype.Test_Reflection_ByType(_select);            Console.WriteLine(print);        }        public string convertToClassName(int index)        {            string className = "";            switch (index)            {                case 0:                    {                        className = "ChinaAirLine";                        break;                    }                case 1:                    {                        className = "EastAirLine";                        break;                    }                case 2:                    {                        className = "NorthAirLine";                        break;                    }            }            return className;        }    }    class RefectType    {        //无参数反射 当要反射的函数为无参时        public string Test_Reflection_ByType(string name)        {            //获取dll            //引用导入            Assembly _tempAss = Assembly.Load("AirLine");            //路径导入            //Assembly _tempAss = Assembly.LoadFile(@"E:\AirLine.dll");            object _airLine = _tempAss.CreateInstance(string.Format("AirLine.{0}", name));            //动态获取到对象后,获取当前实例类型            Type _Temp_Type = _airLine.GetType();            object _tempString;            //反射对象，无参数            _tempString = _Temp_Type.InvokeMember("PrintBoardingCheck", BindingFlags.InvokeMethod, null, _airLine, null);            return _tempString.ToString();        }    }

无参完成，那么接下来试试有参的

  //具体内容（可以推出其他）    //接口    interface IAirLine    {        string PrintBoardingCheck(string name);    }    //实现接口     class SouthAirLine : IAirLine    {        private string _name;        public string Name { get => _name; set => _name = value; }        public SouthAirLine(){}        public SouthAirLine(string name)        {            this._name = name;        }        public string PrintBoardingCheck(string name)        {            string printInfo = "welcome" + name + "\r\n" + "please output southAirLine card";            return printInfo;        }    }

main函数中改一下

           //main中将第一个print注释掉            string print = ftype.Test_Reflection_ByType_Parameter(_select,pasName);

添加个新反射方法

        //有参反射        public string Test_Reflection_ByType_Parameter(string _temp,string PassengerName)        {            Assembly tempAss = Assembly.Load("AirLine");            object[] _params = new object[1];            _params[0] = PassengerName;            object _obj = tempAss.CreateInstance(string.Format("AirLine.{0}", _temp), true, BindingFlags.Default, null, _params, null, null);            Type _temp_Type = _obj.GetType();            object[] _method_params = new object[1];            _method_params[0] = PassengerName;            object _tempString = _temp_Type.InvokeMember("PrintBoardingCheck", BindingFlags.InvokeMethod, null, _obj, _method_params);            return _tempString.ToString();        }

大功告成

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