Unverified80% confidenceTradeoffTime unknown
DPI越高≠越精准，绘图时真正影响精度的是低DPI下的稳定性与直线修正（angle snapping）能否关闭；angle snapping开启会强行拉直斜线，破坏手绘曲线，选购需确认可在驱动中关闭
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