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1、#include#defineGET_KEYP1#defineGET_LEDP0sbitLSA=P2^2;sbitLSB=P2^3;sbitLSC=P2^4;unsignedcharcodeDIG_CODE[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};//“-”的段码是0x40unsignedcharflag=0,power=0;//flag数字键加1;power表示电源键是否按下unsignedcharKeyvalue,Ke
2、ystate;unsignedcharfenh,fenl,miaoh,miaol,huo;voiddelay(unsignedintu){unsignedchari;for(;u>0;u--)for(i=50;i>0;i--);}voidKey_Scan(){GET_KEY=0x0f;if(GET_KEY!=0x0f){delay(15);if(GET_KEY!=0x0f){Keystate=1;//有键按下GET_KEY=0x0f;//测试列switch(GET_KEY){case(0X07):Keyvalue=0;break;case(0X0b):Keyvalu
3、e=4;break;case(0X0d):Keyvalue=8;break;case(0X0e):Keyvalue=12;break;}GET_KEY=0xf0;//测试行switch(GET_KEY){case(0X70):Keyvalue=Keyvalue+3;break;case(0Xb0):Keyvalue=Keyvalue+2;break;case(0Xd0):Keyvalue=Keyvalue+1;break;case(0Xe0):Keyvalue=Keyvalue;break;}while(GET_KEY!=0xf0);//松手检测if(Keyvalu
4、e==0x0f)power++;elseflag++;}}}voidinit_t0(){TH0=(65536-20000)/256;TL0=(65536-20000)%256;//定时20msEA=1;ET0=1;TMOD=0x01;}voiddisplay1()//LED动态显示函数{unsignedchari;for(i=0;i<8;i++){switch(i){case0:LSC=0;LSB=0;LSA=0;GET_LED=DIG_CODE[fenh];break;case1:LSC=0;LSB=0;LSA=1;GET_LED=DIG_CODE[fenl];b
5、reak;case2:LSC=0;LSB=1;LSA=0;GET_LED=0x40;break;case3:LSC=0;LSB=1;LSA=1;GET_LED=0x40;break;case4:LSC=1;LSB=0;LSA=0;GET_LED=DIG_CODE[miaoh];break;case5:LSC=1;LSB=0;LSA=1;GET_LED=DIG_CODE[miaol];break;case6:LSC=1;LSB=1;LSA=0;GET_LED=DIG_CODE[1];break;case7:LSC=1;LSB=1;LSA=1;GET_LED=DIG_C
6、ODE[huo];break;}delay(1);GET_LED=0x00;}}voiddisplay2(){unsignedchari;for(i=0;i<8;i++){switch(i){case0:LSC=0;LSB=0;LSA=0;break;case1:LSC=0;LSB=0;LSA=1;break;case2:LSC=0;LSB=1;LSA=0;break;case3:LSC=0;LSB=1;LSA=1;break;case4:LSC=1;LSB=0;LSA=0;break;case5:LSC=1;LSB=0;LSA=1;break;case6:LSC=
7、1;LSB=1;LSA=0;break;case7:LSC=1;LSB=1;LSA=1;break;}GET_LED=0x00;delay(1);}}voidmain(){unsignedchartemp;Keystate=0;init_t0();TR0=0;//定时器初始化while(1){Key_Scan();temp=Keyvalue;if(Keystate==1)//有键按下{if(temp==0x0f){if(power==1){huo=0;fenh=0;fenl=0;miaoh=0;miaol=0;}//电源打开if(power==2){power=
