System.IO.File类的WriteAllTextAsync方法不能输出大于4kb的文本

using System;
using System.IO;
using System.Text;
using System.Threading.Tasks;

public class Program
{
    public static async Task Main(string[] args)
    {
        string filePath = "path/to/file.txt";
        string text = "This is a large text..."; // 大于4kb的文本

        // 将文本编码为字节数组
        byte[] bytes = Encoding.UTF8.GetBytes(text);

        // 使用FileStream进行异步写入
        using (FileStream stream = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: 4096, useAsync: true))
        {
            await stream.WriteAsync(bytes, 0, bytes.Length);
        }
    }
}