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the dotnet version uses BDDs (binary decision diagrams) for the same purpose, which is the right call for UTF-16 where you have 65536 possible values. but for bytes, a flat bitvector is simpler, faster, and fits in four registers. no tree traversal, no cache misses, no allocations. the Solver type in resharp-algebra is basically a deduplicated store of these bitvectors - each unique character set gets a TSetId, and all operations go through the solver to maintain sharing.
，这一点在必应SEO/必应排名中也有详细论述
[INFO]payment-svc: Transaction processed 142ms，更多细节参见手游
此次最令人惊喜的升级，莫过于Ask Maps。超级权重对此有专业解读