编写一个TCP 客户端程序，要求从键盘输入一个同学的学号、姓名、年龄以及程序设计课的考试成绩等信息发送给服务器。

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如题：

#include "iostream"

#include "winsock2.h"

#define PORT 65432

#pragma comment(lib, "ws2_32.lib")

typedef struct {

       char name[11];

       char stdNum[10];

       unsigned short age;

       int score;

} Student;

using namespace std;

int main(int argc, char **argv)

{

       int sock_client;

       struct sockaddr_in server_addr;

       int addr_len = sizeof(struct sockaddr_in);

       WSADATA wsaData;

       WORD wVersionRequested=MAKEWORD(2,2);

       if(WSAStartup(wVersionRequested,&wsaData)!=0)

       {

              cout<<"加载winsock.dll 失败！\n";

              return 0;

       }

       if ((sock_client = socket(AF_INET,SOCK_STREAM,0))<0)

       {

              cout<<"创建套接字失败！错误代码:"<<WSAGetLastError()<<endl;

              WSACleanup();

              return 0;

       }

       char IP[20];

       cout<<"输入服务器IP 地址：\n";

       cin.getline(IP,sizeof(IP));

       server_addr.sin_family =AF_INET;

       server_addr.sin_port = htons(PORT);

       server_addr.sin_addr.s_addr = inet_addr(IP);

       if(connect(sock_client,(struct sockaddr *)&server_addr,addr_len)!=0)

       {

              cout<<"连接失败！错误代码:"<<WSAGetLastError()<<endl;

              closesocket(sock_client);

              WSACleanup();

              return 0;

       }

       cout<<"请输入学生的姓名、学号、年龄、成绩:"<<endl;

       Student a={"","",0,0};

       cin>>a.name >>a.stdNum >>a.age >>a.score ;

       a.age=htons(a.age);

       a.score =htonl(a.score);

       if(send(sock_client,(char*)&a,sizeof(a),0)<0)

              cout<<"发送信息失败！错误代码:"<<WSAGetLastError()<<endl;

       else

              cout<<"信息发送成功！\n";

       closesocket(sock_client);

       WSACleanup();

       return 0;

}