新手求助解答

Question

代码是这样的：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int guess, number =17;
            do
            {
                Console.WriteLine("你猜测的数：");
                guess = Console.Read();
                if(guess>number)
                    Console.WriteLine("太大!");
                else if(guess<number)
                    Console.WriteLine("太小!");
            }while(guess!=number);            Console.WriteLine("恭喜你，猜中了！");
           // Console.ReadLine();
        }
    }
}
输出的不是自己想象的，如图：

Answer 1

Console.Read()
=>
Convert.ToInt32(Console.ReadLine())

Answer 2

为什么要这样写呢
Console.ReadLine()不就是直接输出，为什么还要Convert.ToInt32