如题在winform中利用HttpWebRequest爬取网页数据如何拿到选择框中的值
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- 码老头 2022-03-18 15:29关注
还推荐另外一个HTML解析组件
AngleSharp
,示例如下:using AngleSharp; using AngleSharp.Dom; using System; using System.Linq; namespace ConsoleApp2 { internal class Program { static void Main(string[] args) { DoWork(); Console.ReadKey(); } static async void DoWork() { var html = "<select id='cjr_xb1' class='w35' name='cjr_xb'>" + "<option value='M' selected=''>男</option>" + "<option value='F'>女</option>" + "</select>"; var config = Configuration.Default; var context = BrowsingContext.New(config); var document = await context.OpenAsync(req => req.Content(html)); var el = document.QuerySelectorAll("#cjr_xb1 option").FirstOrDefault(x => x.HasAttribute("selected")); Console.WriteLine(el.Text()); Console.WriteLine(el.GetAttribute("value")); } } }
输出结果:
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