Qt 下使用线程绘图

#include “mywidget.h“
#include 

int main（int argc char *argv[]）
{
    QApplication a（argc argv）;
    myWidget w;
    w.show（）;

    return a.exec（）;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-01-09 17:14  ThreadImage
     文件        1280  2019-01-09 12:29  ThreadImageThreadImage.pro
     文件       23869  2019-01-09 15:41  ThreadImageThreadImage.pro.user
     目录           0  2019-01-09 14:55  ThreadImageuild
     文件         943  2019-01-09 14:55  ThreadImageuild.qmake.stash
     文件       23515  2019-01-09 14:55  ThreadImageuildMakefile
     文件       42618  2019-01-09 14:55  ThreadImageuildMakefile.Debug
     文件       42734  2019-01-09 14:55  ThreadImageuildMakefile.Release
     目录           0  2019-01-09 17:15  ThreadImageuilddebug
     文件     2279551  2019-01-09 17:15  ThreadImageuilddebugThreadImage.exe
     文件      500936  2019-01-09 17:14  ThreadImageuilddebugmain.o
     文件        4072  2019-01-09 15:20  ThreadImageuilddebugmoc_mythread.cpp
     文件      333562  2019-01-09 15:20  ThreadImageuilddebugmoc_mythread.o
     文件        3446  2019-01-09 17:15  ThreadImageuilddebugmoc_mywidget.cpp
     文件      420942  2019-01-09 17:15  ThreadImageuilddebugmoc_mywidget.o
     文件        9895  2019-01-09 14:55  ThreadImageuilddebugmoc_predefs.h
     文件      492575  2019-01-09 15:20  ThreadImageuilddebugmythread.o
     文件      695511  2019-01-09 17:14  ThreadImageuilddebugmywidget.o
     目录           0  2019-01-09 17:16  ThreadImageuild
elease
     文件        2524  2019-01-09 14:55  ThreadImageuildui_mywidget.h
     文件         179  2019-01-09 12:28  ThreadImagemain.cpp
     文件         891  2019-01-09 14:01  ThreadImagemythread.cpp
     文件         314  2019-01-09 15:20  ThreadImagemythread.h
     文件        1276  2019-01-09 17:14  ThreadImagemywidget.cpp
     文件         629  2019-01-09 17:14  ThreadImagemywidget.h
     文件        1685  2019-01-09 14:43  ThreadImagemywidget.ui