小型台指近月(一般) 無法顯示 跟加權指數的價差

程式碼:

condition999 = symbolexchange = "TF";//期貨

condition994 = symbol = "TSE.TW" or symbol = "TWSE.FS" or symbol = "OTC.TW";//大盤

condition993 = symbolexchange = "TF" and symboltype = 5;//選擇權

if (condition999 = false and condition994 = true) or symbolType = 5 //僅支援期貨

then raiseruntimeerror("不支援此商品");

if symbolexchange = "TF" and symboltype = 3  then //期貨

value1 = GetSymbolField("Underlying", "收盤價");

if time<090000 then

value2=0

else

value2=close-value1;

plot1(value2,"價差");

會出現腳本指定商品不存在

之前都不會這樣