数据类型

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

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            ////变量
            ////值类型
            ////整形:只能放整数
            //int a = 1;
            //a = 4;
            ////浮点型
            //double b = 3.14;
            //float c = 3.14F;
            //decimal d = 3.14M;
            ////布尔型，判断正确与否  只能存放true或者false
            //bool e = true;
            ////字符串类型
            //string f = "Hello world";


            ////常量，只允许取值，不允许重新赋值
            //const int g = 3;
            

            ////类型转换
            //double h = a;
            //a = (int)3.14;//显式转换
            //Console.WriteLine(a);
            //string i = a.ToString();//隐式转换

            ////Convert转换
            //a = Convert.ToInt32(3.14);

            //a = int.Parse("3.14");
            //int s= int.Parse(Console.ReadLine());
            //Console.ReadLine();

            Console.Write("请输入您的分数：");
            
            double score = double.Parse(Console.ReadLine());
            Console.WriteLine("您的"分数是"+(score+5));
            Console.ReadLine();
        }
    }
}