Qt网络编程

1.Udp

client:

QUdpSocket* sender = new QUdpSocket(this);

QByteArray datagram = "hello world!";
//调用writeDatagram函数来发送数据
sender->writeDatagram(datagram.data(), datagram.size(),
QHostAddress::Broadcast, 45454);//给对应端口发送信息(const char*)

server:

QUdpSocket* receiver = new QUdpSocket(this);
receiver->bind(45454, QUdpSocket::ShareAddress);//绑定端口
connect(receiver, &QUdpSocket::readyRead, this, &MyServer::processPendingDatagram);//回调监听端口，连接响应槽函数

2.Tcp

3.Http

4.FTP

5.串口编程