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# ReadWriteLock::Constructor
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默认构造一个读写锁。
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```cpp
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ReadWriteLock() = default;
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```
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## 行为说明
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当前构造函数是默认实现，初始状态等价于：
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- `m_readers == 0`
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- `m_writersWaiting == 0`
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- `m_writerActive == false`
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## 返回值
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- 无。
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## 相关文档
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2026-03-26 20:59:59 +08:00
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- [返回类型总览](ReadWriteLock.md)
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