• 我们先定义一个线程类类：textTread

    texttread.h

    view source#define TEXTTREAD_H 

  • 04.#include <<a href="https://blog.51cto.com/user_index.php?action=addblog_new" target="_blank" class="keylink">QT</a>hread>

    05. 

    06.class textTread : public <a href="https://blog.51cto.com/user_index.php?action=addblog_new" target="_blank" class="keylink">QT</a>hread

    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 <qDebug>

    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-> 。