Notice that in System V semaphores, key is used to uniquely identify the semaphore; in Windows, the semaphore is identified by a name.

注意，在System v信号量中，key被用来惟一标识信号量；在Windows中，信号量是使用一个名称来标识的。

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This is the code used to create the System V semaphore: int semget (key_t key, int nsems, int semflg). Following are the attributes to this code.

用来创建System v信号量使用的代码是：intsemget (key_t key, intnsems, intsemflg)。

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This is the code used to create the System V semaphore: int semget (key_t key, int nsems, int semflg). Following are the attributes to this code.

用来创建System v信号量使用的代码是：intsemget (key_t key, intnsems, intsemflg)。

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