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#include <reg51.h>% u" z/ v: T$ ^, d
void delay (unsigned int i): E; ]* Y: x- W
{
`& E+ {- b0 M+ Eunsigned int k;
/ }7 [% f" N# c0 }3 l* H" ^ Q" o% k$ @, [for (k=0;k<i;k++);* A6 r/ Z3 I, ^- g5 r- a9 ?1 z2 u# q
}
, p- L. l, r1 T! Z2 ivoid main()
& D& i" D( _. L: C7 ^% h{
1 D& M- M5 d/ ?/ p7 `- runsigned char aa,i;
( I) X( N9 y9 d0 k1 o5 ?9 I( pwhile(1)
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aa=0x80;
6 |: `/ a; g, N1 zfor(i=0;i<8;i++)0 |0 ?1 o" ^ E/ X8 o
{
/ J: b9 {$ [% qP1=aa;
t) X1 T4 m5 t3 |- N4 H4 [4 n! @delay(25000);, g; ]' j' n( i3 _% r- ?
aa>>=1;//左移& P# C) {% @# N0 i1 R4 }
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}
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发表于 2017-10-15 21:28:18
