C#无法将“字符串”转换为“System.Collections.Generic.IEnumerable<string>

c#

我是 C# 新手，我该如何解决这个问题？错误显示在最后一行（查询）。任何帮助表示赞赏！

using System;
using System.Collections.Generic;
using System.IO;

namespace file
{
    class Program
    {
        static void Main(string[] args)
        {

            var hobbies = new List<string>() { };
            Console.WriteLine("Please enter your name");
            string myName = Console.ReadLine();
            Console.WriteLine("Tell me something about you");
            string myAbout = Console.ReadLine();
            Console.WriteLine("What kind of hobbies do you have?");
            string myHobbies = Console.ReadLine();
            hobbies.Add(myHobbies);
            var query = myName + 'n' + myAbout + 'n' + myHobbies;
            File.AppendAllLines("C:test.txt", query);

        }
    }
}

回答

public static void AppendAllLines (string path, 
System.Collections.Generic.IEnumerable<string> contents);