7单只数码管循环显示 0~9单片机 语言程序设计实训 例 C 100 ---基于 8051 和 仿真

2369353531

; I/ [# z; b; Y6 O: _4 Q  #include<reg51.h>
' Y9 R3 o. u0 @& P2 x6 E3 h#include<intrins.h>
9 A* k# _, ]' J. J#define uchar unsigned char
$ |7 Q' d! M( Y' N, y" s% @1 Q6 u#define uint unsigned int
uchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
0 [6 X5 v/ }1 D, ^* G% d/ q8 h//延时
void DelayMS(uint x)
$ }9 ^  V) w; L$ R{
uchar t;
while(x--) for(t=0;t<120;t++);
" T+ p7 u% p: e3 J}
//主程序
void main()
- T! f8 B" ?# d{
uchar i=0;
' C5 G2 _9 k) z% \P0=0x00;
3 z. D" d$ K+ u! swhile(1)
{
; t7 C/ ^% c& O. B2 E) n- X: C* UP0=~DSY_CODE;
+ {) b" G: g7 l, Ni=(i+1)%10;
% [: e2 P2 L4 \" H" ?. nDelayMS(300);
}
}