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#include <reg51.h>/ b$ M5 s0 z' i, s) V6 v
void delay (unsigned int i)
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unsigned int k;
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void main()# R$ ^, \6 R; @% ^% G& Z
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unsigned char aa,i;+ }; l8 X& ^. Q) t) N& i" j
while(1), N! x6 j: M) X2 z( Q
{
* }- H% f3 ~/ r4 uaa=0x80;
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P1=aa;6 u, k! I, v1 r2 Z' h( |( L
delay(25000);1 e5 v- A4 B5 A4 k
aa>>=1;//左移6 u. w* u8 s0 G/ X$ c
}
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}
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发表于 2017-10-15 21:28:18
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