有名信号量sem_open和内存信号量sem_init创建信号量的区别
有名信号量sem_open和内存信号量sem_init创建信号量的区别 分类： C/C++sem_t *semsem_open(const char *name, int oflag, .../*mode_t mode,unsinged int value) ;int sem_init(sem_t *sem,int shared, unsigned int value)
