如何使用 C# 检索网页？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/598075/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to retrieve a webpage with C#?
提问by belaz
How to retrieve a webpage and diplay the html to the console with C# ?
如何使用 C# 检索网页并将 html 显示到控制台？
采纳答案by Mehrdad Afshari
Use the System.Net.WebClientclass.
使用System.Net.WebClient类。
System.Console.WriteLine(new System.Net.WebClient().DownloadString(url));
回答by REA_ANDREW
I have knocked up an example:
我举了一个例子：
WebRequest r = WebRequest.Create("http://www.msn.com");
WebResponse resp = r.GetResponse();
using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
{
Console.WriteLine(sr.ReadToEnd());
}
Console.ReadKey();
Here is another option, using the WebClient this time and do it asynchronously:
这是另一种选择，这次使用 WebClient 并异步执行：
static void Main(string[] args)
{
System.Net.WebClient c = new WebClient();
c.DownloadDataCompleted +=
new DownloadDataCompletedEventHandler(c_DownloadDataCompleted);
c.DownloadDataAsync(new Uri("http://www.msn.com"));
Console.ReadKey();
}
static void c_DownloadDataCompleted(object sender,
DownloadDataCompletedEventArgs e)
{
Console.WriteLine(Encoding.ASCII.GetString(e.Result));
}
The second option is handy as it will not block the UI Thread, giving a better experience.
第二个选项很方便，因为它不会阻塞 UI 线程，从而提供更好的体验。
回答by Ahmed Atia
// Save HTML code to a local file.
WebClient client = new WebClient ();
client.DownloadFile("http://yoursite.com/page.html", @"C:\htmlFile.html");
// Without saving it.
string htmlCode = client.DownloadString("http://yoursite.com/page.html");
