QThread运行多次start()

原文链接 

https://blog.youkuaiyun.com/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 <QCoreApplication>
#include <mythread.h>
 
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();
}