测试报错，请问这句话该怎么写呢？
VARIABLE:A = 0;
VARIABLE:B =0;
H1：HHV(H,100);
L1：LLV(L,100);
VARIABLE: MYENTERPRICE = 0;
IF HOLDING = O AND H >=REF(H1,1) THEN BEGIN
BUY(1,1,LIMITR,H);
A = REF(H1,1)-REF(L1,1);
MYENTERPRICE = H;
END
IF HOLDING=O AND L<=(L1,1) THEN BEGIN
BUYSHORT(1,1,LIMITR,L);
B = REF(H1,1)-REF(L1,1);
MYENTERPRICE = L;
END