c#中GetType()與Typeof()的區別

案例1：

複製代碼 代碼如下:int i = 5;
Console.WriteLine(i.GetType());//System.Int32
var x = 127.25m;
Console.WriteLine(x.GetType());//System.Decimal

案例2：複製代碼 代碼如下: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 命名空間的Test類
}
}
class Test
{
}
}

Typeof()返回的是類名的對象，也可以返回類名，也可以返回特定類內部的方法和欄位複製代碼 代碼如下: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 命名空間的Test類

Type type = typeof(Test);
Console.WriteLine("Typeof():");
Console.WriteLine(type);//_2011._12._15.Test 命名空間的Test類
Console.WriteLine();

MethodInfo[] methodinfo = type.GetMethods();

Console.WriteLine(methodinfo.GetType());//System.Reflection.MethodInfo[]
foreach (var i in methodinfo)
{
Console.WriteLine(i);//輸出Test類的所有方法及繼承Object的執行個體方法
}
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
MemberInfo[] memberinfo = type.GetMembers();
Console.WriteLine(memberinfo.GetType());
foreach(var i in memberinfo)
{
Console.WriteLine(i);//輸出Test類欄位和System.type類型
}
}

}
class Test
{
private int age;
public string name;
public void speaking()
{
Console.WriteLine("Welcome to cnblog!");
}
public void writing()
{
Console.WriteLine("Please writing something!");
}
}
}

運行結果：複製代碼 代碼如下: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