大神帮忙！！！Qt 客户端给服务器发送数据
客户端代码：

void UI_Main::sendMessage()

{

    QByteArray block;

    QDataStream out(&block,QIODevice::WriteOnly);

    out.setVersion(QDataStream::Qt46);

    out$amp;<amp> </amp> <amp> </amp> <amp>
    out.device()->seek(0);
    out$amp; </amp> <amp>
    tcpSocket->write(block);
    ui->sendLabel->setText("send successful");
}
服务其端代码：
void UIMain::readMessage()
{
    QTcpSocket *clientConnection = tcpServer->nextPendingConnection();
    QDataStream in(clientConnection);
    in.setVersion(QDataStream::Qt4_6);
    if (blockSize==0) {
        if(clientConnection->bytesAvailable() $amp; </amp> <amp>
        in $amp;>amp;>amp;$nbsp;blockSize;
    }
    if(clientConnection->bytesAvailable() $amp; </amp> <amp>
    in $amp;>amp;>amp;$nbsp;message;
    ui->showLabel->setText(message);
}
为什么服务器端收不到信息？
</amp>

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