Key should point to the semaphore set key, which you want to open.
key应该指向想要打开的信号量集的key值。
"Want to open more," the elimination of law: there will always be disappointments in life matter, the so-called "Everyone has the cupboard," that is, of this point.
“想开些”消除法：人生总有不如意之事，所谓“人人都有本难念的经”即是此理。
Which has the stigma of what it is, we do not want to open, and in the audience will no doubt on the point marked with a small discount.
而这种具有耻辱性的东西恰恰是我们所不愿意去直视的，在受众面上就毫无疑问会打上一点小小的折扣。
应用推荐