计算器数码管显示

1、#include "reg51.h"sbit P3_0=P30;sbit P3_1=P31;sbit P3_2=P32;sbit P3_3=P33;sbit P3_4=P34;sbit P3_5=P35;sbit P3_6=P36;sbit P3_7=P37;unsigned char sz11,xs14,xs24,sj;int i,cs,bb,t1,t2,fh,s1,s2;void chushihua()bb=1;xs10=10;xs11=10;xs12=10;xs13=10;xs20=10;xs21=10;xs22=10;xs23=10;t1=0;t2=0;s1=s2=

2、0;fh=0;cs=1;void xianshi(unsigned char xs4)int i,j;unsigned char zy;zy=0x08;for (i=0;i<4;i+)P2=(0xff-zy); P1=szxsi;zy=(zy>>1);for (j=0;j<100;j+);/for (i=0;i<100;i+);return;unsigned char saomiao()int i,j;unsigned char pp;for (i=0;i<1000;i+);P0=0xfe;P3=0x0f;pp=P3;if (P3_0=0) P3=0x0f;

3、pp=P3;while (P3_0=0);for (i=0;i<1000;i+);return 7;if (P3_1=0) P3=0x0f;pp=P3;while (P3_1=0);for (i=0;i<1000;i+);return 8;if (P3_2=0) P3=0x0f;pp=P3;while (P3_2=0);for (i=0;i<1000;i+);return 9;if (P3_3=0) P3=0x0f;pp=P3;while (P3_3=0);for (i=0;i<1000;i+);return 11;/=1P0=0xfd;P3=0x0f;pp=P3;if

4、 (P3_0=0) P3=0x0f;pp=P3;while (P3_0=0);for (i=0;i<1000;i+);return 4;if (P3_1=0) P3=0x0f;pp=P3;while (P3_1=0);for (i=0;i<1000;i+);return 5;if (P3_2=0) P3=0x0f;pp=P3;while (P3_2=0);for (i=0;i<1000;i+);return 6;if (P3_3=0) P3=0x0f;pp=P3;while (P3_3=0);for (i=0;i<1000;i+);return 12;/=2P0=0xf

5、b;P3=0x0f;pp=P3;if (P3_0=0) P3=0x0f;pp=P3;while (P3_0=0);for (i=0;i<1000;i+);return 1;if (P3_1=0) P3=0x0f;pp=P3;while (P3_1=0);for (i=0;i<1000;i+);return 2;if (P3_2=0) P3=0x0f;pp=P3;while (P3_2=0);for (i=0;i<1000;i+);return 3;if (P3_3=0) P3=0x0f;pp=P3;while (P3_3=0);for (i=0;i<1000;i+);r

6、eturn 13;/=3P0=0xf7;P3=0x0f;pp=P3;if (P3_0=0) P3=0x0f;pp=P3;while (P3_0=0);for (i=0;i<1000;i+);return 16;if (P3_1=0) P3=0x0f;pp=P3;while (P3_1=0);for (i=0;i<1000;i+);return 0;if (P3_2=0) P3=0x0f;pp=P3;while (P3_2=0);for (i=0;i<1000;i+);return 15;if (P3_3=0) P3=0x0f;pp=P3;while (P3_3=0);for

7、(i=0;i<1000;i+);return 14;/=4return 10;void chuli(unsigned char x)int i;if (x=16)cs=0;return ;if (x>=0 && x<10)if (bb=1)if (s1=4) cs=0;return ;elsefor (i=3;i>0;i-)xs1i=xs1i-1;xs10=x;s1+;t1=t1*10+x;if (bb=2)if (s2=4) cs=0;return ;elsefor (i=3;i>0;i-)xs2i=xs2i-1;xs20=x;s2+;t2=t2

8、*10+x;if (x>10)if (bb=1) fh=x;bb=2;return;if (bb=2)if (fh=11) t1=t1/t2;if (fh=12) t1=t1*t2;if (fh=13) t1=t1-t2;if (fh=14) t1=t1+t2;if (t1>=10000) cs=0;return;elseif (t1>=0 && t1<10) xs10=t1;xs11=10;xs12=10;xs13=10;if (t1>=10 && t1<100) xs10=t1%10;xs11=t1/10;xs12=10;

9、xs13=10;if (t1>=100 && t1<1000) xs10=t1%10;xs11=(t1-(t1/100)*100)/10;xs12=t1/100;xs13=10;if (t1>=1000 && t1<10000) xs10=t1%10;xs11=t1%100/10;xs12=(t1-(t1/1000)*1000)/100;xs13=t1/1000;bb=2;s2=0;t2=0;xs20=10;xs21=10;xs22=10;xs23=10;fh=x;void main() sz0=0xfc;sz1=0x60;sz2=0xda;sz3=0xf2;sz4=0x66;sz5=0xb6;sz6=0xbe;sz7=0xe0;sz8=0xfe;sz9=0xf6;sz10=0x00; cs=0;for (;)if (cs=0) chushihua();if (cs=1) sj=saomiao();if (cs=