各位大侠帮忙改错！

Question

using System;
using System.Collections.Generic;
using System.Text;namespace famaWeight
{
    public class Program
    {
        //建立验证天平左右的砝码是否相等的函数Check
        static bool Check(int a, int b, int c, int d)
        {
            int i, j, k, l;
            i = j = k = l = 0;
            for (int r = 1; r <= 40; r++)
            {
                for (i = -1; i <= 1; i++)
                    for (j = -1; j <= 1; j++)
                        for (k = -1; k <= 1; k++)
                            for (l = -1; l <= 1; l++)
                            {
                                if (a * i + b * j + c * k + d * l == r)
                                    goto NextLoop;
                            }
                return false;
                NextLoop;
                continue;
            }
            return true;
        }
        //称重函数
        static void Main(string[] args)
        {
            int a, b, c, d;
            for (a = 1; a < 40; a++)
                for (b = 1; b < 40; b++)
                    for (c = 1; c < 40; c++)
                        for (d = 1; d < 40; d++)
                        {
                            if (a + b + c + d == 40)
                            {
                                if (Check(a, b, c, d))
                                {
                                    Console.WriteLine("{0}\t{1}\t{2}\t{3}", a, b, c, d);
                                }
                            }
                        }
            Console.WriteLine("DONE");
            Console.ReadLine();
        }
    }
}错误列表
错误 1 只有 assignment、call、increment、decrement 和 new 对象表达式可用作语句 D:\c#\我的C#程序\projects\famaWeight\famaWeight\Program.cs 25 17 famaWeight
错误 2 当前上下文中不存在名称“NextLoop” D:\c#\我的C#程序\projects\famaWeight\famaWeight\Program.cs 25 17 famaWeight

Answer 1

NextLoop;
后边应当是冒号“：”，不是分号