这是基于Ｃ＋＋环境下的

				// ClientDlg.h : header file
				//
				
				#if !defined(AFX_CLIENTDLG_H__D73C4199_8B85_4D81_81D4_F3CFE191B562__INCLUDED_)
				#define AFX_CLIENTDLG_H__D73C4199_8B85_4D81_81D4_F3CFE191B562__INCLUDED_
				
				#if _MSC_VER > 1000
				#pragma once
				#endif // _MSC_VER > 1000
				
				#define CONNECE_PORT 8080     //定义通信端口
				#define TIME_OUT     30       //定义超时时限
				
				#include "winsock2.h"
				/////////////////////////////////////////////////////////////////////////////
				// CClientDlg dialog
				
				class CClientDlg : public CDialog
				{
				// Construction
				public:
					CClientDlg(CWnd* pParent = NULL);	// standard constructor
				
				// Dialog Data
					//{{AFX_DATA(CClientDlg)
					enum { IDD = IDD_CLIENT_DIALOG };
					CIPAddressCtrl	m_ctrlServer;
					CString	m_strMsg;
					//}}AFX_DATA
				
					// ClassWizard generated virtual function overrides
					//{{AFX_VIRTUAL(CClientDlg)
					protected:
					virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
					//}}AFX_VIRTUAL
				
				// Implementation
				protected:
					HICON m_hIcon;
				
					// Generated message map functions
					//{{AFX_MSG(CClientDlg)
					virtual BOOL OnInitDialog();
					afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
					afx_msg void OnPaint();
					afx_msg HCURSOR OnQueryDragIcon();
					afx_msg void OnSend();
					//}}AFX_MSG
					DECLARE_MESSAGE_MAP()
				
				public:
					void CClientDlg::ContactServer();
				
				public:
					SOCKET m_hSocket;
					sockaddr_in  m_ServerAddr;
				};
				
				//{{AFX_INSERT_LOCATION}}
				// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
				
				#endif // !defined(AFX_CLIENTDLG_H__D73C4199_8B85_4D81_81D4_F3CFE191B562__INCLUDED_)