#include "udpclient.h"UdpClient::UdpClient( QWidget *parent, Qt::WindowFlags  f )    : QDialog( parent, f ){      setWindowTitle(tr("UDP Client"));    QVBoxLayout *vbMain = new QVBoxLayout( this ); 	TextEditReceive = new QTextEdit( this);     vbMain->addWidget( TextEditReceive );               PushButtonClose = new QPushButton( this);    PushButtonClose->setText( tr( "Close" ) );      vbMain->addWidget( PushButtonClose );    connect(PushButtonClose,SIGNAL(clicked()),this,SLOT(PushButtonClose_clicked()));		port = 5555;	udpSocket = new QUdpSocket(this); 	connect(udpSocket, SIGNAL(readyRead()),this, SLOT(dataReceived()));		bool result=udpSocket->bind(port);	if(!result)	{		QMessageBox::information(this,tr("error"),tr("udp socket create error!"));		return;			}	}UdpClient::~UdpClient(){}                                                                             void UdpClient::PushButtonClose_clicked()                     {          	accept();}void UdpClient::dataReceived(){    while (udpSocket->hasPendingDatagrams())     {	 	QByteArray datagram;	 	datagram.resize(udpSocket->pendingDatagramSize());	 	udpSocket->readDatagram(datagram.data(), datagram.size());			QString msg=datagram.data();			TextEditReceive->insertPlainText(msg);    }}