不用动态函数精确选出涨跌停板a1:=ref(c,1)*0.9*100;
a3:=FRACPART(a1)*10;
b1:=1; b2:=0;
a4:=if(a3>=5,b1,b2);
a5:=INTPART(a1);
a6:=(a5+a4)/100;
a7:c=a6;
跌停
a1:=ref(c,1)*1.1*100;
a3:=FRACPART(a1)*10;
b1:=1; b2:=0;
a4:=if(a3>=5,b1,b2);
a5:=INTPART(a1);
a6:=(a5+a4)/100;
a7:c=a6;
涨停
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