如何在Qt中通过QTcpSocket发送UTF8编码的字符串？

#include <QTcpSocket>

QTcpSocket *socket = new QTcpSocket(this);
socket->connectToHost("服务器地址", 端口号);

QString str = "要发送的字符串";
QByteArray utf8Data = str.toUtf8();
socket->write(utf8Data);

socket->flush();

#include <QTcpSocket>

void sendUtf8String()
{
    QTcpSocket *socket = new QTcpSocket(this);
    socket->connectToHost("服务器地址", 端口号);

    if (socket->waitForConnected()) {
        QString str = "要发送的字符串";
        QByteArray utf8Data = str.toUtf8();
        socket->write(utf8Data);
        socket->flush();
    }
}