实例259——创建MFC工作者线程，进行耗时计算
..........................................\WorkThreadDemo
..........................................\..............\Debug
..........................................\..............\.....\WorkThreadDemo.exe
..........................................\..............\MainFrm.cpp
..........................................\..............\MainFrm.h
..........................................\..............\ReadMe.txt
..........................................\..............\res
..........................................\..............\Resource.h
..........................................\..............\res\Toolbar.bmp
..........................................\..............\...\WorkThreadDemo.ico
..........................................\..............\...\WorkThreadDemo.rc2
..........................................\..............\...\WorkThreadDemoDOC.ico
..........................................\..............\StdAfx.cpp
..........................................\..............\StdAfx.h
..........................................\..............\UIDlg.cpp
..........................................\..............\UIDlg.h
..........................................\..............\UIThread.cpp
..........................................\..............\UIThread.h
..........................................\..............\WorkThreadDemo.aps
..........................................\..............\WorkThreadDemo.clw
..........................................\..............\WorkThreadDemo.cpp
..........................................\..............\WorkThreadDemo.dsp
..........................................\..............\WorkThreadDemo.dsw
..........................................\..............\WorkThreadDemo.h
..........................................\..............\WorkThreadDemo.ncb
..........................................\..............\WorkThreadDemo.opt
..........................................\..............\WorkThreadDemo.plg
..........................................\..............\WorkThreadDemo.rc
..........................................\..............\WorkThreadDemoDOC.cpp
..........................................\..............\WorkThreadDemoDOC.h
..........................................\..............\WorkThreadDemoVIEW.cpp
..........................................\..............\WorkThreadDemoVIEW.h