普中HC-6800单片机静态数码管显示出错，原因及如何改进

Question

#include <REGX52.H>

unsigned char NixieTable[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F}    //0~9对应位选端，A~F为0x77,0x7C,0x39,0x5E,0x79,0x71;0x00为空

void Nixie(unsigned char Location,Number)
{
    switch(Location)
    {
        case 1:P1_0=0;P1_1=0;P1_2=0;P1_3=1;break;
        case 2:P1_0=0;P1_1=0;P1_2=1;P1_3=0;break;
        case 3:P1_0=0;P1_1=1;P1_2=0;P1_3=0;break;
        case 4:P1_0=1;P1_1=0;P1_2=0;P1_3=0;break;
    }
    P0=NixieTable[Number];
}

void main()
{
    while(1)
    {
        Nixie(4,6);
    }
}

Answer 1

多位数码管的段合用就不存在静态都是动态的.
void Nixie(unsigned char Location,unsigned char Number)
引脚定义sbit P1_0=P1^0;...