• reflact中GetMethod方法的使用


    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();
     }
     }
    }
    
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  • 原文地址:https://www.cnblogs.com/naliang/p/4174215.html
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