using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace dy.image { public class DownloadHelper { private readonly HttpClient _httpClient; public DownloadHelper(HttpClient httpClient) { _httpClient = httpClient; _httpClient.Timeout = TimeSpan.FromSeconds(60); // 下载超时60秒 _httpClient.DefaultRequestHeaders.Add("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2"); _httpClient.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"); _httpClient.DefaultRequestHeaders.Add("Referer", "https://www.douyin.com"); } } }