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#include
#define uchar unsigned char
uchar step[]={0x08,0x0a,0x02,0x66,0x04,0x05,0x01,0x09};//æ ¹æ®å®é
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sbit key=P1^0;
uchar num;
main()
{
uchar i;
num=0;
while(1)
{
while(key);//çå¾
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while(!key);//çå¾
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num++;//计æ°å¼å 1
num&=0x07;//计æ°å¼è°æ´ï¼ä½¿ä¹ä¸å¤§äº7
P0=step[num];//éæ¥è¿æ°æ®
for(i=0;i<120;i++);//延æ¶çº¦1毫ç§
}
}