link没有运行结果，请问哪里编写错误？

Question

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

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string[] courses = { "体育课", "体育课", "美术课", "音乐课", "劳动课", "语文课", "语文课", "语文课", "语文课", "语文课", "语文课", "语文课",
"数学课", "数学课", "数学课", "数学课", "数学课", "数学课", "数学课", "英语课", "英语课", "英语课", "英语课", "英语课",
"英语课", "英语课"};
var result = Enumerable.Range(0, 5).Select(_ => Enumerable.Range(0, 6).Select(__ => "").ToArray()).ToArray();
var rndseq = Enumerable.Range(0, 30).OrderBy(_ => Guid.NewGuid()).Zip(courses, (x, y) => new { x, y }).ToArray();
while (true && !result.All(x => x.Contains("语文课") && x.Contains("数学课") && x.Contains("英语课")))
{
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 6; j++)
{
if (rndseq.Any(x => x.x == i * 6 + j))
result[i][j] = rndseq.First(x => x.x == i * 6 + j).y;
else
result[i][j] = "自修课";
}
}
}
for (int j = 0; j < 6; j++)
{
for (int i = 0; i < 5; i++)
{
Console.Write(result[i][j] + "\t");
}
Console.WriteLine();
}
}
}
}

Answer 1

while (true &&
不好意思，这里忘记去掉true了，陷入死循环了。