qt5多线程pingIP地址（线程池）

#include "mythread.h" #include <QThreadPool> #include <QApplication> /* * QRunnable: * virtual void run() * void QRunnable :: setAutoDelete（bool autoDelete） * * QThreadPool: * void setMaxThreadCount(int maxThreadCount) max number of thread * void start(QRunnable *runnable, int priority = 0) run thread * void setExpiryTimeout(int expiryTimeout) thread run time * int activeThreadCount() const active thread * * */ int main(int argc, char *argv[]) { QCoreApplication app(argc, argv); system(QString("rm %1").arg(file_name).toStdString().c_str()); QThreadPool pool; pool.setMaxThreadCount(100);//max number of thread //------------- construct IP list----------------- for(int i=0;i<255;i++) for(int j=20;j<50;j++) pool.start(new MyThread(QString("125.217.%2.%1").arg(i).arg(j))); return 0; }