如何在ASP.NET C#中获取网页源代码？

using System;
using System.Net.Http;
using System.Threading.Tasks;

namespace GetWebPageSource
{
    class Program
    {
        static async Task Main(string[] args)
        {
            string url = "https://www.example.com";
            string sourceCode = await GetWebPageSourceCodeAsync(url);
            Console.WriteLine(sourceCode);
        }

        static async Task<string> GetWebPageSourceCodeAsync(string url)
        {
            using HttpClient client = new();
            HttpResponseMessage response = await client.GetAsync(url);
            response.EnsureSuccessStatusCode();
            string sourceCode = await response.Content.ReadAsStringAsync();
            return sourceCode;
        }
    }
}