c#中GetType()与Typeof()的区别

案例1：

int i = 5;
console.writeline(i.gettype());//system.int32
var x = 127.25m;
console.writeline(x.gettype());//system.decimal

案例2：

namespace _2011._12._15
{
    class program
    {
        static void main(string[] args)
        {
            test testone = new test();
            string s = testone.gettype().tostring();
            console.writeline(s);//_2011._12._15.test  命名空间的test类
        }
    }
    class test
    {    
    }
}

typeof()返回的是类名的对象，也可以返回类名，也可以返回特定类内部的方法和字段

namespace _2011._12._15
{
    class program
    {
        static void main(string[] args)
        {
            test testone = new test();
            string s = testone.gettype().tostring();
            console.writeline("gettype():");
            console.writeline(s);//_2011._12._15.test  命名空间的test类

            type type = typeof(test);
            console.writeline("typeof():");
            console.writeline(type);//_2011._12._15.test  命名空间的test类
            console.writeline();

           methodinfo[] methodinfo = type.getmethods();

           console.writeline(methodinfo.gettype());//system.reflection.methodinfo[]
            foreach (var i in methodinfo)
            {
                console.writeline(i);//输出test类的所有方法及继承object的实例方法
            }
            console.writeline();
            console.writeline();
            console.writeline();
            console.writeline();
            memberinfo[] memberinfo = type.getmembers();
            console.writeline(memberinfo.gettype());
            foreach(var i in memberinfo)
            {
                console.writeline(i);//输出test类字段和system.type类型
            }
        }

    }
    class test
    {
        private int age;
        public string name;
        public void speaking()
        {
            console.writeline("welcome to cnblog!");
        }
        public void writing()
        {
            console.writeline("please writing something!");
        }
    }
}

运行结果：

gettype():
_2011._12._15.test
typeof():
_2011._12._15.test

system.reflection.methodinfo[]
void speaking()
void writing()
system.type gettype()
system.string tostring()
boolean equals(system.object)
int32 gethashcode()

system.reflection.memberinfo[]
void speaking()
void writing()
system.type gettype()
system.string tostring()
boolean equals(system.object)
int32 gethashcode()
void .ctor()
system.string name