6 位数码管动态扫描显示,就是将 6 个数码管的 8 个相同的段线并接在一起，通过

限流电阻R10---R20、接到 STC89C52 的 P0 口，由 P0 口控制字段输出(低电平有

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效)-6 digital dynamic scan showed that the six of eight digital lines and then the same segment together, through the

Current limiting resistor R10--- R20, P0 port STC89C52 received by the control field P0 port output (active low

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Effect)