通达信公式错误修复：D120[120]<=20 AND D120[120]>=0 AND BARSSINCE(REF(D120,0)<=20 AND REF(D120,0)>=0)<=2

公式中缺少逻辑运算符，应该为：

D120[120]<=20 AND D120[120]>=0 AND BARSSINCE(REF(D120,0)<=20 AND REF(D120,0)>=0)<=2

完整代码如下：

C120:=REF(C,119); H120:=REF(H,119); L120:=REF(L,119); RSV120:=100*(C120-LLV(L120,9))/(HHV(H120,9)-LLV(L120,9)); K120:=MA(RSV120,3); D120:=MA(K120,3); D120[120]<=20 AND D120[120]>=0 AND BARSSINCE(REF(D120,0)<=20 AND REF(D120,0)>=0)<=2