爲何condition_wait要用while來判斷condition條件？

condition_variable使用基本形式以下：.net lock while(condition) { wait(lock) } https://blog.csdn.net/matrixyy/article/details/50929150 線程 lock後，wait實際上會unlock，而後其餘線程纔可能經過code lock change condition notify 修

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