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/**********************************键盘显示子函数**********************************/ void keydisplay(uchar C) { WriteCommandLCM(0x0c,1); DisplayListChar(0,1,str2); switch(C) { case 0:clear(); break; case 1:prodis(); alldata[rrr]=0; WriteDataLCM('0'); break; case 2:prodis(); WriteDataLCM('='); kind=kind+10; datapc(); remove0(); data3dis(); break; case 3:prodis(); kind=kind+1; //加法运算， kind=1 position1=rrr; WriteDataLCM('+'); break; case 4:prodis(); alldata[rrr]=1; WriteDataLCM('1'); break; case 5:prodis(); alldata[rrr]=2; WriteDataLCM('2'); break; case 6:prodis(); alldata[rrr]=3; WriteDataLCM('3'); break; case 7:prodis(); kind=kind+5; //减法运算， kind=5 position1=rrr; WriteDataLCM('-'); break; case 8:prodis(); alldata[rrr]=4; WriteDataLCM('4'); break; case 9:prodis(); alldata[rrr]=5; WriteDataLCM('5'); break; case 10:prodis(); alldata[rrr]=6; WriteDataLCM('6'); break; case 11:prodis(); kind=kind+25; //乘法运算， kind=25 position1=rrr; WriteDataLCM('*'); break; case 12:prodis(); alldata[rrr]=7; WriteDataLCM('7'); break; case 13:prodis(); alldata[rrr]=8; WriteDataLCM('8'); break; case 14:prodis(); alldata[rrr]=9; WriteDataLCM('9'); break; case 15:prodis(); kind=kind+125; //除法运算， kind=125 position1=rrr; WriteDataLCM('/'); break; default: break; } } void datapc(void) { uchar k; if((position1==0) || (position2==(position1+1))) yes=1; else { { ddata=shi(position1-1-k); data1=data1+(alldata[k])*ddata; } { ddata=shi(position2-1-k); data2=data2+(alldata[k])*ddata; } if((data1 > 50000) || (data2 > 50000)) {yes=2;} else { switch (kind) { case 11:data3=data1+data2;yes=0; break; case 15: if(data1 { ddata=data1; data1=data2; data2=ddata; fu=1; } data3=data1-data2;yes=0; break; case35:data3=data1*data2;yes=0; break; case 135:data3=data1/data2;yes=0; break; default:yes=1; } } } if(yes==0) { love[0]=data3 / 1000000000; love[1]=data3 / 100000000-love[0]*10; love[2]=data3 / 10000000-love[0]*100-love[1]*10; love[3]=data3 / 1000000-love[0]*1000-love[1]*100-love[2]*10; love[4]=data3 /100000-love[0]*10000-love[1]*1000-love[2]*100-love[3]*10; love[5]=data3 / 10000-love[0]*100000-love[1]*10000-love[2]*1000-love[3]*100-love[4]*10; love[6]=(data3 % 10000)/1000; love[7]=(data3 % 1000)/100; love[8]=(data3 % 100)/10; love[9]= data3 % 10; } if(kind==135) { love[10]=0xfe; love[11]=((data1 % data2)*10)/data2; love[12]=((((data1 % data2)*10)%data2)*10)/data2; love[13]=((((((data1 % data2)*10)%data2)*10)%data2)*10)/data2; } } void remove0(void) { uchar k=0; while((love[k]==0) && (k<=8)) { love[k]=0xf0; k++; } pfu=k; } void data3dis(void) { uchar k; if(yes==0) { if(kind==135) { for(k=0;k<=13;k++) { WriteCommandLCM(0xc2+k,1); WriteDataLCM(love[k]+0x30); } } else { for(k=0;k<=9;k++) { WriteCommandLCM(0xc6+k,1); WriteDataLCM(love[k]+0x30); } if(fu==1) { WriteCommandLCM(0xc5+pfu,1); WriteDataLCM('-'); } } } else if(yes==1) error(); else if(yes==2) out(); } void clear(void) { uchar k; while(((~P1) & 0xf0)!=0); for(k=7;k<=15;k++) { WriteCommandLCM(k+0x80+0x40,1); WriteDataLCM(' '); } for(k=7;k<=15;k++) { WriteCommandLCM(k+0xc0,1); WriteDataLCM(' '); } rrr=0xff; kind=yes=position1=position2=0; //清运算类型标志 fu=pfu=0; data1=data2=0; //清数据 data3=0; } void prodis(void) { rrr=6; rrr++; if(rrr==15) {rrr=7;} WriteCommandLCM(rrr+0x80+0x40,1); while(((~P1) & 0xf0)!=0); }
哪位大哥帮忙看下红色字段表达的是个啥意思 小弟完全看不懂~
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