在停止调试的时候为什么会出现程序异常结束？

qt

#include<QDebug>
#include<time.h>
#include<unistd.h>
Cthread::Cthread()
{
   
    t2 = new QThread;
    this->moveToThread(t2);
    t2->start();
    connect(t2,&QThread::started,this,&Cthread::test2);
   
    while (1)
    {
        qDebug()<<"FFFFF"<<QThread::currentThreadId();
        sleep(1);
    }
}

void Cthread::test()
{
    qDebug()<<"asdfasdfad";
}

void Cthread::test2()
{
    while (1)
    {
        qDebug()<<"dddddddd"<<QThread::currentThreadId();
        sleep(1);
    }

}

C和C++完整教程：https://blog.csdn.net/it_xiangqiang/category_10581430.html
C和C++算法完整教程：https://blog.csdn.net/it_xiangqiang/category_10768339.html