重新使用HttpClient，但对每个请求使用不同的超时设置？

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

class Program
{
    static async Task Main(string[] args)
    {
        var client = new HttpClient();

        // 设置第一个请求的超时时间
        var request1 = new HttpRequestMessage(HttpMethod.Get, "https://api.example.com/data1");
        request1.Headers.Timeout = TimeSpan.FromSeconds(5);

        // 设置第二个请求的超时时间
        var request2 = new HttpRequestMessage(HttpMethod.Get, "https://api.example.com/data2");
        request2.Headers.Timeout = TimeSpan.FromSeconds(10);

        try
        {
            var response1 = await client.SendAsync(request1);
            Console.WriteLine(await response1.Content.ReadAsStringAsync());

            var response2 = await client.SendAsync(request2);
            Console.WriteLine(await response2.Content.ReadAsStringAsync());
        }
        catch (TaskCanceledException ex)
        {
            Console.WriteLine("请求超时: " + ex.Message);
        }
        catch (Exception ex)
        {
            Console.WriteLine("发生错误: " + ex.Message);
        }
    }
}

var handler = new HttpClientHandler();
handler.ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => true;
var client = new HttpClient(handler);
client.Timeout = TimeSpan.FromSeconds(5);