c++ Socket学习——The POSIX name for this item is deprecated. Instead, use the ISO C++ conformant name:

在写c++服务器时发现问题如下：
源码：

// ConsoleApplicationSock.cpp: 定义控制台应用程序的入口点。

#include "stdafx.h"
#include <winsock.h>
#include <string.h>
#include <corecrt_io.h>
#pragma comment(lib,"ws2_32.lib")

int serverport = 5188;
//创建，绑定套接字，并开启监听
SOCKET InitialSocket()
{
	//创建套接字
	SOCKET listenfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (listenfd == INVALID_SOCKET)
	{
		printf("socket error!");
	}

	//绑定套接字，成功返回0，失败返回-1
	struct sockaddr_in servaddr;
	memset(&servaddr, 0, sizeof(servaddr));
	servaddr.sin_family = AF_INET;
	servaddr.sin_port = htons(serverport);
	servaddr.sin_addr.S_un.S_addr = INADDR_ANY;
	if (bind(listenfd, (sockaddr*)&servaddr, sizeof(servaddr)) == SOCKET_ERROR)
	{
		printf("bind error!");
	}

	//监听,将listenfd转换为被动套接字，SOMAXCONN为队列最大值
	//被动套接字：accept，主动套接字：connect
	if (listen(listenfd,SOMAXCONN)== SOCKET_ERROR)
	{
		printf("listen error!");
	}
	return listenfd;
}

int main()
{
	//初始化WSA  
	WORD sockVersion = MAKEWORD(2, 2);
	WSADATA wsaData;
	if (WSAStartup(sockVersion, &wsaData) != 0)
	{
		return 0;
	}

	SOCKET listenSock=InitialSocket();

	//接受，成功返回非负整数，失败返回-1
	struct sockaddr_in peeraddr;
	int peerlen = sizeof(peeraddr);
	SOCKET connSock = accept(listenSock, (sockaddr*)&peeraddr, &peerlen);
	if (connSock < 0)
	{
		printf("accept socket error!");
	}
	
	char recvbuf[1024];
	while (1)
	{
		memset(recvbuf, 0, sizeof(recvbuf));
		//下一句为出问题的代码
		read(connSock,recvbuf,sizeof(recvbuf));
		printf("%s",recvbuf);
	}

    return 0;
}

编译输出…

1>------ 已启动生成: 项目: ConsoleApplicationSock, 配置: Debug x64 ------
1>stdafx.cpp
1>ConsoleApplicationSock.cpp
1>e:\aaa\1project\test\socktest\consoleapplicationsock\consoleapplicationsock\consoleapplicationsock.cpp(66): warning C4244: “参数”: 从“SOCKET”转换到“int”，可能丢失数据
1>e:\aaa\1project\test\socktest\consoleapplicationsock\consoleapplicationsock\consoleapplicationsock.cpp(66): error C4996: ‘read’: The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _read. See online help for details.
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\ucrt\corecrt_io.h(523): note: 参见“read”的声明
1>已完成生成项目“ConsoleApplicationSock.vcxproj”的操作 - 失败。
==========生成: 成功 0 个，失败 1 个，最新 0 个，跳过 0 个 ==========

解决办法：
进入“项目”=>“[项目名]属性”

选择“配置属性”=>“C/C++”=>“预处理器”=>“预处理器定义”=>“编辑”

在定义框中添加

_CRT_NONSTDC_NO_DEPRECATE
_CRT_SECURE_NO_WARNINGS

点击“应用”，然后点“确定”，最后重新编译，应该就可以了。