通达信公式分析：D120[120]<=20 AND D120[120]>=0 AND BARSSINCE(REF(D120,0)<=20 AND REF(D120,0)>=0)<=2 公式解析

通达信公式 D120[120]<=20 AND D120[120]>=0 AND BARSSINCE(REF(D120,0)<=20 AND REF(D120,0)>=0)<=2 公式解析，该公式本身是正确的，不存在错误句或操作数没有相应的操作符匹配问题。

以下是公式代码:

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;