如何在ASP.NET C#中获取网页源？

如何在 C# ASP.NET 中获取页面的 HTML 代码？

例子：http://google.com

如何通过 ASP.NET C# 获取此 HTML 代码？

The WebClient http://msdn.microsoft.com/en-us/library/system.net.webclient.aspx类将做你想做的事：

string address = "http://stackoverflow.com/";   

using (WebClient wc = new WebClient())
{
    string content = wc.DownloadString(address);
}

正如评论中提到的，您可能更喜欢使用异步版本DownloadString避免阻塞：

string address = "http://stackoverflow.com/";

using (WebClient wc = new WebClient())
{
    wc.DownloadStringCompleted +=
        new DownloadStringCompletedEventHandler(DownloadCompleted);
    wc.DownloadStringAsync(new Uri(address));
}

// ...

void DownloadCompleted(object sender, DownloadStringCompletedEventArgs e)
{
    if ((e.Error == null) && !e.Cancelled)
    {
        string content = e.Result;
    }
}