1.system("ls 目录 >list");
2. 根据 list 创建循环链表存放图片名
3. QTimer timer
connect(timer,SIGNAL(timeout()),this,SLOT(pictureshow())); 定时刷新
4.void MyDialog::pictureshow()
{
char buf[200];
strcpy(buf,"路径");
strcat(buf,circle->name);
strtok(buf,"\n");
label->setPixmap(QPixmap(buf));
circle = circle->rlink;
}
循环刷图 circle 链表头;