马尾线主图

K:=(MA(C,3)+MA(C,6)+MA(C,12)+MA(C,24))/4;
KK:=MA(K,3);KKK:=MA(KK,3);
KKKK:=MA(KKK,3);KKKKK:=MA(KKKK,4);
K;KK;KKK;KKKK;KKKKK;