比如task1中有两条语句OSTimeDly(65535);OSSemPend(Sem_abc,0,&err);dosomething();此时延时未到,但task2调用了OSSemPOST(Sem_abc);此时task1会马上执行dosomething吗?
http://blog.csdn.net/hbuxiaofei/article/details/7755649