69-获得线程的计数过程\multithread.pbl .....................\multithread.pbt .....................\work.pbw .....................\演示效果1.bmp .....................\演示效果2.bmp .....................\演示效果3.bmp .....................\演示效果4.bmp .....................\演示效果5.bmp .....................\演示效果6.bmp .....................\演示效果7.bmp .....................\演示效果8.bmp .....................\演示效果9.bmp 69-获得线程的计数过程