zoukankan      html  css  js  c++  java
  • Reflect中MethodInfo使用方法

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Reflection;

    namespace MethodInfoInvokeDemo
    {
    public class ReflectTest
    {
    public void MethodWithNoParaNoReturn()
    {
    Console.WriteLine("不带参数且不返回值的方法");
    }

    public string MethodWithNoPara()
    {
    Console.WriteLine("不带参数且有返回值的方法");
    return "MethodWithNoPara";
    }

    public string Method1(string str)
    {
    Console.WriteLine("带参数且有返回值的方法");
    return str;
    }

    public string Method2(string str, int index)
    {
    Console.WriteLine("带参数且有返回值的方法");
    return str + index.ToString();
    }

    public string Method3(string str, out string outStr)
    {
    outStr = "bbbb";
    Console.WriteLine("带参数且有返回值的方法");
    return str;
    }

    public static string StaticMethod()
    {
    Console.WriteLine("静态方法");
    return "cccc";
    }
    }

    class Program
    {
    static void Main(string[] args)
    {
    Type type = typeof(ReflectTest);
    object reflectTest = Activator.CreateInstance(type);

    //不带参数且不返回值的方法的调用
    MethodInfo methodInfo = type.GetMethod("MethodWithNoParaNoReturn");
    methodInfo.Invoke(reflectTest, null);

    Console.WriteLine();

    //不带参数且有返回值的方法的调用
    methodInfo = type.GetMethod("MethodWithNoPara");
    Console.WriteLine(methodInfo.Invoke(reflectTest, null).ToString());

    Console.WriteLine();

    //带参数且有返回值的方法的调用
    methodInfo = type.GetMethod("Method1", new Type[]{typeof(string)});
    Console.WriteLine(methodInfo.Invoke(reflectTest, new object[]{"测试"}).ToString());

    Console.WriteLine();

    //带多个参数且有返回值的方法的调用
    methodInfo = type.GetMethod("Method2", new Type[] { typeof(string), typeof(int) });
    Console.WriteLine(methodInfo.Invoke(reflectTest, new object[] { "测试", 100 }).ToString());

    //Console.WriteLine();

    //methodInfo = type.GetMethod("Method3", new Type[] { typeof(string), typeof(string) });
    //string outStr = "";
    //Console.WriteLine(methodInfo.Invoke(reflectTest, new object[] { "测试", outStr }).ToString());

    Console.WriteLine();

    //静态方法的调用
    methodInfo = type.GetMethod("StaticMethod");
    Console.WriteLine(methodInfo.Invoke(null, null).ToString());

    Console.ReadKey();
    }
    }
    }

  • 相关阅读:
    from __future__ import *
    每日一题力扣102
    每日一题力扣228
    每日一题力扣409
    每日一题力扣135 分糖果 中级
    【K短路】牛慢跑
    【2021-06-12】只有团队作战,才能更好生存
    【2021-06-11】不怕事情被砸,就怕团队不愿意承压
    【2021-06-10】压力需主动承受,才能进步
    【2021-06-09】日记和睡觉治疗法
  • 原文地址:https://www.cnblogs.com/94cool/p/2805927.html
Copyright © 2011-2022 走看看