（四）强行冲闯公安机关设置的警戒带、警戒区或者检查点的。
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。关于这个话题，safew官方版本下载提供了深入分析
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.
for (let i = 0; i