C# 类型或命名空间名称'；获取'；找不到

我的

get

得到了问题中的错误，我不知道出了什么问题

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

namespace VanDusen_PracticeObjects
{
class MathFun
{
    int number1 = 4;
    int number2 = 4;
    int total = 0;


    public MathFun()
    {
    }

    public void MultiplyThem()
    {
        number1 = 2 * 2;
    }
    public void AddThem()
    {
         number2 = 2 + 2;
    }

    public MathFun(int innumber1, int innumber2)
    {
        number1 = innumber1;
        number2 = innumber2;
    }
    public int Number1;
    {
        get
        {
           return number1;
        }
        set
        {
           number1 = value;
        }
    }
    public int Number2;
    public int Total;
   }
}    

Number1

是一个数字，没有分号，因此应删除此行后的分号：

public int Number1;

因此：

public int Number1
{
    get { return number1; }
    set { number1 = value; }
}