limitc:=if(STRFIND(STKNAME,' S ',1),0.05,0.1);{波動極限}
uplimit:=intpart(ref(C,1)*(1+limitc)* 100+0.5)/100;{限價}
dnlimit:=intpart(ref(c,1)*(1-limitc)* 100+0.5)/100;{限價}
當選:sum(C & gt;uplimit-0.01,N)>0;