怎么获不得返回值呢??...总出错..
using   System;
using   System.Collections;
using   System.ComponentModel;
using   System.Data;
using   System.Net   ;
using   System.IO   ;
using   System.Text   ;
using   System.Text.RegularExpressions;
using   System.Web   ;

namespace   ConsoleApplication3
{
///   <summary>
///   Class1   的摘要说明。
///   </summary>
class   Class1
{
///   <summary>
///   应用程序的主入口点。
///   </summary>
[STAThread]
static   void   Main(string[]   args)
{
//
//   TODO:   在此处添加代码以启动应用程序
//
string   url= "http://61.156.3.58/test.jsp ";
string   md5= " ";
string   content= "COMMANDID=01&CORPID=40068887807&CPPW= "+md5+ "&SOURCEADDRFLAG=1&PHONE=13156160733&SENDTIME=2006-10-20   17:25:00&TITLE=smstitle&CONTENT=smstest! ";
Class1   post=new   Class1   ();
string   con=post.postget   (url,content);

}
public   string     postget(string   url,   string   content)
{
try  
{
Encoding   encoding   =   Encoding.GetEncoding( "GB2312 ");
byte[]   data   =   encoding.GetBytes(content);
//   准备请求...
HttpWebRequest   myRequest   =   (HttpWebRequest)WebRequest.Create(url);
myRequest.Method   =   "POST ";
myRequest.ContentType= "application/x-www-form-urlencoded ";
myRequest.ContentLength   =   data.Length;
Stream   newStream=myRequest.GetRequestStream();
//   发送数据
newStream.Write(data,0,data.Length);
newStream.Close();
//接收数据
HttpWebResponse     webResponse=(HttpWebResponse)myRequest.GetResponse();  
//Console.WriteLine   ( "aa ");
Stream   stream=webResponse.GetResponseStream();
//System.IO.StreamReader   streamReader   =   new   StreamReader(stream,   System.Text.Encoding.GetEncoding( "GB2312 "));
StreamReader   streamReader=new   StreamReader   (stream);
string   content1   =   streamReader.ReadToEnd();
//   关闭相关对象
//Console.WriteLine   (content1);
return   content1;
streamReader.Close();
webResponse.Close();
}
catch   (Exception   e)
{
Console.WriteLine   ( "error:{0} "+e.ToString   ());
}
}
}
}

我想获得一个返回的值怎么就是不行呢,原来返回是void,现在怎么总出错呢.咋回事??


------解决方案--------------------
streamReader和webResponse要定义在try的外面