Simple Client server code sample implemented in C + +, Python, and go language _c language

The work of the C/S model, what is done is to send data to the server, but the development phase will encounter the loop test of the program itself, need to use a simple server to verify the correctness of the data sent.

Write software in C + +, run test with Python, this time also just see go language, so have to have demo. The following three sets of programs implement the same functionality, here is a summary.

First, C + + implementation

Boost.asio is a cross-platform C + + library that provides a consistent asynchronous I/O model for network and underlying I/O programs using modern C + + methods. In order to cross the platform, I use Boost library implementation, as follows.

Service-Side code:

Copy Code code as follows:

/*
File:svr.cpp
Author:mike
E-mail:mike_zhang@live.com
*/

#include <iostream>
#include <boost/asio.hpp>

Using Boost::asio::ip::tcp;
enum {max_length = 1024};

typedef boost::shared_ptr<tcp::socket> SOCKET_PTR;

int main ()
{
Boost::asio::io_service Io_service;
Tcp::acceptor A (Io_service, Tcp::endpoint (Tcp::v4 (), Atoi ("12345"));
for (;;)
{
Socket_ptr Sock (new Tcp::socket (Io_service));
A.accept (*sock);
Char Data[max_length];
Boost::system::error_code error;
size_t length = Sock->read_some (Boost::asio::buffer (data), error);
Data[length] = 0;
std::cout<<data<<std::endl;
Sock->close ();
}
return 0;
}

Client code:

Copy Code code as follows:

/*
File:cli.cpp
Author:mike
E-mail:mike_zhang@live.com
*/
#include <iostream>
#include <boost/asio.hpp>

Using Boost::asio::ip::tcp;
enum {max_length = 1024};

int main (int argc, char* argv[])
{
Boost::asio::io_service Io_service;
Tcp::resolver Resolver (io_service);
Tcp::resolver::query query (TCP::V4 (), "127.0.0.1", "12345");
Tcp::resolver::iterator iterator = resolver.resolve (query);

Tcp::socket s (io_service);
S.connect (*iterator);

Std::cout << "Please input:";
Char Request[max_length];
Std::cin.getline (Request, max_length);
size_t request_length = strlen (request);
Boost::asio::write (S, boost::asio::buffer (Request, request_length));
return 0;
}

Compiling: g++ cli.cpp-o cli-lboost_system-lboost_thread-mt

Second, Python implementation

Service-Side code:

Copy Code code as follows:

'''
File:svr.py
Author:mike
E-mail:mike_zhang@live.com
'''
Import Socket,os
Sock = Socket.socket (socket.af_inet, socket. SOCK_STREAM)
Sock.bind ((' 127.0.0.1 ', 12345))
Sock.listen (5)
While True:
Connection,address = Sock.accept ()
BUF = CONNECTION.RECV (1024)
Print BUF
Connection.close ()

Client code:

Copy Code code as follows:

'''
File:cli.py
Author:mike
E-mail:mike_zhang@live.com
'''
Import socket
Sock = Socket.socket (socket.af_inet, socket. SOCK_STREAM)
Sock.connect ((' 127.0.0.1 ', 12345))
#sock. Send (' test\n ')
Sock.send (raw_input ("Please input:")
Sock.close ()

Third, go language implementation

Service-Side code:

Copy Code code as follows:

/*
File:svr.go
Author:mike
E-mail:mike_zhang@live.com
*/
Package Main

Import
"NET"
"FMT"
"Bufio"
)

Func Main () {
Client,err: = Net. Listen ("TCP", "127.0.0.1:12345")
If Err!= nil {
Fmt. Printf ("Error:%s\n", err.) String ())
}
for {
If C, err: = client. Accept (); Err = = Nil {
Defer C.close ()
Line, _: = Bufio. Newreader (c). ReadString (' \ n ')
Fmt. Println (line)
}
}
}

Client code:

Copy Code code as follows:

/*
File:cli.go
Author:mike
E-mail:mike_zhang@live.com
*/
Package Main

Import
"NET"
"FMT"
)

Func Main () {
Conn, Err: = Net. Dial ("TCP", "127.0.0.1:12345")
If Err!= nil {
Fmt. Printf ("Error:%s\n", err.) String ())
}
Conn. Write ([]byte ("Just a Test")
}

Run effect (for example, go language):

Well, that's all, I hope to help you.