C++服务端发送给客户端消息，但客户端没有显示

Question

服务端代码：
#include"iostream"
#include
#pragma comment(lib,"ws2_32")
#include
using namespace std;
int main()
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
sockaddr_in sockaddr;
sockaddr.sin_family = PF_INET;
sockaddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
sockaddr.sin_port = htons(827);
bind(s, (SOCKADDR*)&sockaddr, sizeof(SOCKADDR));

listen(s, 1);

SOCKADDR clientAddr;
int nSize = sizeof(SOCKADDR);
SOCKET clientSock;
clientSock = accept(s, (SOCKADDR*)&clientAddr, &nSize);

send(clientSock,
    "helllo client \r\n",
    strlen("hello client \r\n") + sizeof(char),
    NULL);

closesocket(clientSock);
closesocket(s);

WSACleanup();
return 0;

}

客户端代码：
#include"iostream"
#include
#include
#pragma comment(lib,"ws2_32")
using namespace std;
int main()
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);

SOCKET s = socket(PF_INET,SOCK_STREAM, IPPROTO_TCP);

sockaddr_in sockAddr;
sockAddr.sin_family = PF_INET;
sockAddr.sin_addr.S_un.S_addr = inet_addr("127,0,0,1");
sockAddr.sin_port = htons(827);

connect(s, (SOCKADDR*)&sockAddr, sizeof(SOCKADDR));

char szBuffer[MAXBYTE] = { 0 };

recv(s, szBuffer, MAXBYTE, NULL);

printf("szBuffer=%s\r\n", szBuffer);

closesocket(s);
WSACleanup();
return 0;

}

Answer 1

抓包工具看下，是不是防火墙阻拦了，ip地址是否正确，网络是否通？如果是内网，有没有端口映射？