Most userland implementations of custom ReadableStream instances do not typically bother with all the ceremony required to correctly implement both default and BYOB read support in a single stream – and for good reason. It's difficult to get right and most of the time consuming code is typically going to fallback on the default read path. The example below shows what a "correct" implementation would need to do. It's big, complex, and error prone, and not a level of complexity that the typical developer really wants to have to deal with:
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（一）包含两个以上涉及不同税率、征收率的业务；
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从之前泄露的跑分来看，这颗芯片终于在光追和综合性能上重新站回了可以和高通正面掰手腕的擂台上。