Qt 按钮点击事件：连接到服务器

void Procession::on_pushButton_clicked() { QString ip = ui->IP->text(); QString port = ui->port->text();

if (ip.isEmpty() || port.isEmpty()) {
    ui->message->clear();
    ui->message->append('请输入有效的IP地址和端口号');
    return;
}

ui->message->clear();
ui->message->append('正在连接中...');
m_socket->connectToHost(ip, port.toInt());

}