C#学习--unsafe与指针

以下代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace sizeof关键字
{
    internal class Program
    {
        static void Main(string[] args)
        {
            unsafe
            {
                int x = sizeof(Student);
                Console.WriteLine("int = " + sizeof(int));
                Console.WriteLine(sizeof(long));
                Console.WriteLine(x);

                Student stu = new Student();
                stu.ID = 99;
                stu.Score = 99;
                Student* pStu = &stu;       //采用指针方式调取内存
                pStu->ID = 101;
                pStu->Score = 100;
                Console.WriteLine(stu.Score);
                (*pStu).Score = 1000;
                Console.WriteLine(stu.Score);
            }
        }
    }

    struct Student
    {
        public int ID;
        public long Score;
    }
}

结果