判断代码如下:unsignedcharA,B;P1_0=1;A=P1_0:P1_0=0;B=P1_0;if(A==1B==0){悬空状态;}if(A==0B==0){下拉状态;}if(A==1B==1
main(){unsignedchara[8];a[0]=0x77;a[1]=N_leab_led_7[0];a[2]=N_leab_led_7[1];a[3]=N_leab_led_7[2];a[4
voidCalculate(){unsignedlongx;unsignedchara;a=1;for(x=0;x4294967294;x++){
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