我们先定义一个线程类类：textTread

texttread.h

view source#define TEXTTREAD_H 

04.#include <QThread>

05. 

06.class textTread : public "https://blog.51cto.com/user_index.php?action=addblog_new" target="_blank" class="keylink">QThread

07.{

08.Q_OBJECT

09.public:

10.textTread();

11.void run();

12.signals:

13.void sendGUIThreadData(QString str);  //向主线程通信的信号

14.public slots:

15.void GetGUIThreadID(int mThreadID);  //接受主线程通讯过来数据的槽

16.private:

17.int ThreadID;

18.};

19. 

20.#endif // TEXTTREAD_H


再来看 texttread.cpp



view sourceprint?

01.#include "texttread.h"

02.#include

03.textTread::textTread()

04.{

05.}

06.void textTread::run()

07.{

08.qDebug() << tr("Thread is Open,ThreadID : %1").arg(ThreadID);

09.//You can do anything in here   嗨嗨拽两句鸟文

10.}

11.void textTread::GetGUIThreadID(int mThreadID)  //接受主线程通讯过来的数据

12.{

13.ThreadID = mThreadID;

14.}


再看在GUI主线程实现50个线程的代码：



view sourceprint?

01.const int LENGTH = 50;

02. 

03.textTread *tread;

04.tread = new textTread[LENGTH];

05.for(int i=0;i<=LENGTH-1;i++){

06.connect(this,SIGNAL(SendGUIThreadID(int)),&tread[i],SLOT(GetGUIThreadID(int)));

07.connect(&tread[i],SIGNAL(sendGUIThreadData(QString)),this,SLOT(GetGUIThreadData(QString)));

08.emit SendGUIThreadID(i);

09.tread[i].start();

10.}

声明类的指针数组。

然后循环绑定信号与槽，最后循环用Start()运行线程，注意此处new 出的类数组，后面用的是.而不是-> 。