QThread运行多次start()

原文链接 

https://blog.csdn.net/mz5111089/article/details/78095536 

QThread thread;
thread.start();
thread.start();
thread.start();

 

A)QThread类,类似上述多次直接调用start()函数,只会运行一次,不会运行多次。

B)想要多次运行,需等待wait()线程运行完成,然后再调用start()

C)  QThread对象,每次调用start函数,线程Id会变化,每次产生不同的线程Id。

#include 
#include 
 
int main(int argc, char *argv[])
{
   QCoreApplication a(argc, argv);
 
   MyThread thread;
   thread.start();
 
 
   if (thread.isRunning())
    {
       thread.wait();
    }
   thread.start();
 
 
   if (thread.isRunning())
    {
       thread.wait();
    }
   thread.start();
 
   return a.exec();
}

 

 

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