The number of shapes to be generated. The default value is 100.
This is not limited to critical systems. Any non-trivial engineering project where bugs are expensive (which is most of them) accelerates when correctness is cheap.，详情可参考电影
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Other FactorsThere are currently four different bus types for transferring data to and from the memory itself, UHS-I, UHS-II, UHS-II, and Express. While UHS-II and UHS-III share a contact layout, UHS-I uses only the top row of pins, and Express substitutes the lower row found on UHS-II and UHS-III for its own. As a result, the cards are technically backwards compatible with slower devices, but Express cards will only run at UHS-I speeds in devices without Express support, due to the Express pins not lining up correctly with the UHS-II pins. You'll find that most modern cards UHS-II, as it has more than enough speed to support V90 cards.