qt-lambda函数无打印

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>


MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);


    qDebug() << "Lambda slot executed1";
    lambdaSlot = []() {
            qDebug() << "Lambda slot executed";
            // 可访问类成员（如this指针）
        };
    lambdaSlot;
}


MainWindow::~MainWindow()
{
    delete ui;
}

解决
lambdaSlot;改成lambdaSlot();