Question

c#中HttpWebRequest获取http源码出错

源代码如下，
string strUrl = @"http://www.google.cn/webhp?source=g_cn";
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(strUrl);
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

req.Method = "POST";
req.Timeout = 10;
req.ContentType = "application/x-www-form-urlencoded";
Stream newStream = req.GetRequestStream();
始终运行到最后一句的Stream的时候出错，不知道为什么，请各位师兄指点

Answer 1

string strUrl = @"http://www.google.cn/webhp?source=g_cn";
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(strUrl);

req.Method = "POST";
req.Timeout = 10;
req.ContentType = "application/x-www-form-urlencoded";
Stream newStream = req.GetRequestStream();
//写完post数据再GetResponse

HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

Answer 2

http://hi.baidu.com/deltacat2006/blog/item/c503cb9584352c4fd1135ece.html