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

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5 S5 ~4 {3 [& z9 J3 {4 s3 I! x#include
#include
#define uchar unsigned char
#define uint unsigned int
0 a+ H' p1 x# y) l3 D% z( Juchar code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
//延时
7 `- U# h- a& Evoid DelayMS(uint x)
" ]8 [3 q* d' x" R{
V" W2 T* t4 Y1 o" e" L- \uchar t;
while(x--) for(t=0;t<120;t++);
+ E" ?0 {7 A8 ], Q3 X* Q! M}
7 c1 a+ N; u: t; ~8 N7 E8 z. ]$ N//主程序
void main()
9 q; t" s0 Z8 x# @( Q2 [. U7 c{
9 b8 R: a* \! P( C. t0 Duchar i=0;
/ S$ @. r& M+ \" uP0=0x00;
while(1)
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P0=~DSY_CODE;
i=(i+1)%10;
# G( |: w9 U+ W3 T+ uDelayMS(300);
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}
- U& g; }! y1 O- k: }