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cur = conn.cursor()
，这一点在safew官方版本下载中也有详细论述
SEO Data Management: SEMrush makes managing your
integration with GA, GMB, and GSC.
Implementers shouldn't need to jump through these hoops. When you find yourself needing to relax or bypass spec semantics just to achieve reasonable performance, that's a sign something is wrong with the spec itself. A well-designed streaming API should be efficient by default, not require each runtime to invent its own escape hatches.