[单选]  #include__voidmain(){__chara[]=“abcdbfbgacd“;__inti1=0,i2=0,i=0;__while(a[i]){__if(a[i]=='a')i1++;__if(a[i]=='b')i2++;____i++;__}__printf(“%d%d%d“,i1,i2,i);__}