QT多线程Qt程序中开启多线程有多种方式,如:继承QThread类,重写run函数继承自QObject,并调用moveToThread函数调用QtConcurrent::run函数,传入耗时函数即参数本篇文章主要对moveToThread的用法进行详解。
The QTimer class provides a high-level programming interface for timers. To use it, create a QTimer, connect its timeout signal to the appropriate slots, and call start. From then on, it will emit the timeout signal at constant intervals.
话不多说,直接上代码简单明了:例程1:运行后发现线程函数正常运行,但是程序会报错,如下所示:这是因为创建了线程后线程开始执行,但是主线程main并没有停止脚步,仍然继续执行然后退出,此时创建的子线程还在运行,线程仍然存在但指向它的线程对象已经销毁,所以会抛出异常。