按键控制位数码管循环显示单片机C语言.doc

#includereg51.h sbit k1=P1^0; #define uint16 unsigned int #define uchar unsigned char uchar code shuzu[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; void delay() { uint16 i=1000; while(i--); } void main() { uchar n; P2=0xfe; P1=0xff; while(1) { if(k1==0) { if(n=9) n=0; else n++; P0=shuzu[n]; while(!k1); delay(); while(!k1); } } }