Qt开发之路36---设置线程优先级QThread

一：Qt的线程优先级

QThread::IdlePriority               0     scheduled only when no other threads are running.
QThread::LowestPriority          	1     scheduled less often than LowPriority.
QThread::LowPriority               	2     scheduled less often than NormalPriority.
QThread::NormalPriority         	3     the default priority of the operating system.
QThread::HighPriority               4     scheduled more often than NormalPriority.
QThread::HighestPriority          	5     scheduled more often than HighPriority.
QThread::TimeCriticalPriority    	6     scheduled as often as possible.
QThread::InheritPriority            7     use the same priority as the creating thread. This is the default.

二：设置优先级start(Priority = InheritPriority);

    QThread *myThread = new QThread();
    myThread->start(QThread::HighPriority);
    

三：获取线程优先级priority()

    QThread *myThread = new QThread();

    myThread->start();
    myThread->setPriority(QThread::HighPriority);

    qDebug()<< myThread->priority();

四：设置线程优先级方法二 setPriority（）

myThread->setPriority(QThread::HighPriority);

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