L1:=(EMA(CLOSE,3) - EMA(CLOSE,13));
L2:=EMA(L1,9);
L3:=BArslAST(crOSS(L1,L2));
L4:=REF(L3,L3+1);
L5:=L2
变盘:=CROSS(L1,L2) AND L5;
买:变盘>0;
L1:=(EMA(CLOSE,3) - EMA(CLOSE,13));
L2:=EMA(L1,9);
L3:=BArslAST(crOSS(L1,L2));
L4:=REF(L3,L3+1);
L5:=L2
变盘:=CROSS(L1,L2) AND L5;
买:变盘>0;