c＃反射和特性

1、关于类型的反射示例

static void Main(string[] args)
{
    
	string s = "hello";
	Type t1 = s.GetType();
	Console.WriteLine(t1.FullName);
	Type t2 = Type.GetType("System.String", false, true);
	Console.WriteLine(t2.FullName);
	Type t3 = typeof(string);
	Console.WriteLine(t3.FullName);
	
	Console.ReadLine();
}

2、关于方法的反射示例

static void Main(string[] args)
{
    
    string s = "hello";
    Type t1 = s.GetType();
    Console.WriteLine(t1.FullName);
    Type t2 = Type.GetType("System.String", false, true);
    Console.WriteLine(t2.FullName);
    Type t3 = typeof(string);
    Console.WriteLine(t3.FullName);

    Console.WriteLine("*********************************************");
    //GetMethods(t1);
    Console.WriteLine("Copy method: {0}", t1.GetMethod("Copy"));
    GetMethods(t1, BindingFlags.Public & BindingFlags.Instance);
    //GetFields(), GetProperties();

    Console.ReadLine();
}

public static void GetMethods(Type t, BindingFlags flags)
{
    
    MethodInfo[] methodInfos = t.GetMethods(flags);
    foreach (MethodInfo method in methodInfos)
    {
    
        Console.WriteLine(method.Name);
    }
}

3、条件预处理指令

//#define DEBUG
//#undef DEBUG
#define TRACE
using System;
using System.Diagnostics;
using System.Reflection;

namespace ConsoleApp1
{
    
    class Program
    {
    
        static void Main(string[] args)
        {
    
#if (DEBUG)
            {
    
                Console.WriteLine("Debugging is enabled");
            }
#elif(TRACE)
            {
    
                Console.WriteLine("Tracing is enabled");
            }
#else
            {
    
                Console.WriteLine("Release is enabled");
            }
#endif
            Console.WriteLine("hello");
            Console.ReadLine();
        }
    }
}