程序流程图
代码
#include<reg52.h> #define uchar unsigned char sbit dula=P2^6; sbit wela=P2^7; sbit jia_key=P3^6; sbit jian_key=P3^7; sbit zf_key=P3^5; bit flag=0; uchar num = 0,show_num=2,maichong=4,table_begin=0; uchar code table1[]={0x01,0x02,0x04,0x08,0x08,0x04,0x02,0x01}; uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; void delay(uchar i) {uchar j,k;for(j=i;j>0;j--)for(k=125;k>0;k--); } void display() {dula=0;P0=table[show_num];dula=1;dula=0;wela=0;P0=0xfe;wela=1;wela=0;delay(5);P0=table[0];dula=1;dula=0;P0=0xfd;wela=1;wela=0;delay(5); } void key() {if(jia_key==0){delay(5);if(jia_key==0){num++;if(num==4)num=3;while(jia_key==0);}}if(jian_key==0){delay(5);if(jian_key==0){if(num!=0)num--;elsenum=0;while(jian_key==0);}}if(zf_key==0){delay(5);if(zf_key==0){flag=~flag;while(zf_key==0);}} } void dispose() {switch(num){case 0:show_num=2;maichong=5;break;case 1:show_num=4;maichong=4;break;case 2:show_num=6;maichong=6;break;case 3:show_num=8;maichong=2;break;}if(flag==0){table_begin=0;}elsetable_begin=4; } void qudong() {uchar i,j;for(j=0+table_begin;j<4+table_begin;j++){P1=table1[j];for(i=0;i<maichong;i++){display();}} } void main() {while(1){key();dispose();qudong();} }
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转载于:https://www.cnblogs.com/bhlsheji/p/4039587.html
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