除了万象系等优质购物中心的品牌具备一定的优质供给能力，B、C类商圈的品牌多为普通甚至低端供给。
In practice, (and yes, there are always exceptions to be found) BYOB is rarely used to any measurable benefit. The API is substantially more complex than default reads, requiring a separate reader type (ReadableStreamBYOBReader) and other specialized classes (e.g. ReadableStreamBYOBRequest), careful buffer lifecycle management, and understanding of ArrayBuffer detachment semantics. When you pass a buffer to a BYOB read, the buffer becomes detached — transferred to the stream — and you get back a different view over potentially different memory. This transfer-based model is error-prone and confusing:
，这一点在safew官方下载中也有详细论述
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Murphy added: "As we look forward and anticipate customers' changing needs, we must ensure we continue to have the right setup and capabilities.