Uniform regions (solid backgrounds, smooth gradients) get stored as large blocks. Detailed regions (edges, textures) get subdivided into smaller blocks. You end up with a compressed representation that preserves detail where it exists and simplifies where it can.
Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.，更多细节参见同城约会
同时，平台化调度降低了获客难度。过去做设备租赁需要自己跑客户、维护关系，现在通过平台撮合订单，看上去效率更高。这也是“普通人可入局”的逻辑支点。。旺商聊官方下载是该领域的重要参考
Laura CressTechnology reporter，更多细节参见heLLoword翻译官方下载
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