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我只是想 ping 谷歌或某个网站，看看我是否能让这段代码工作。我是 C# 新手，所以我不知道为什么这是错误的。有什么我想念的吗？

 System.Net.WebClient myWebClient = new System.Net.WebClient();

 myWebClient.Proxy = new System.Net.WebProxy("--mywebproxy--");

 myWebClient.Headers["User-Agent"] = "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6 (.NET CLR 3.5.30729)"; 
 myWebClient.Headers["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; 
 myWebClient.Headers["Accept-Language"] = "en-us,en;q=0.5"; 
 myWebClient.Headers["Accept-Encoding"] = "    gzip,deflate"; 
 myWebClient.Headers["Accept-Charset"] = "ISO-8859-1,utf-8;q=0.7,*;q=0.7"; 

 myWebClient.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;


 myWebClient.DownloadData("http://www.google.com");
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1 回答 1

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我希望您使用的是实际的 URI

像，

System.Net.WebClient myWebClient = new System.Net.WebClient { Proxy = new System.Net.WebProxy("http://127.0.0.1") };

如果它仍然不起作用，请安装 IIS 并重试。

你的整个代码将是

        var myWebClient = new System.Net.WebClient { Proxy = new System.Net.WebProxy("http://127.0.0.1") };


        myWebClient.Headers["User-Agent"] = "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6 (.NET CLR 3.5.30729)";
        myWebClient.Headers["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
        myWebClient.Headers["Accept-Language"] = "en-us,en;q=0.5";
        myWebClient.Headers["Accept-Encoding"] = "    gzip,deflate";
        myWebClient.Headers["Accept-Charset"] = "ISO-8859-1,utf-8;q=0.7,*;q=0.7";

        myWebClient.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;


        var x = myWebClient.DownloadData("http://www.google.com");
于 2012-09-26T21:37:28.500 回答