请老师看看这段代码是啥意思？谢谢了

Params //参数定义GlobalVars //全局变量定义Vars Numeric VA; Numeric VB; Numeric VC; Numeric OO; Numeric i; Numeric MM; Numeric J; NumericSeries BIAS;Begin VA = 0; VB = 0; VC = 0; OO = Close; BIAS = (Close-AverageFC(Close,6)) / AverageFC(Close,6)*100; For (i = 0; i < 5; i++) { VA = Close[i] + VA; } MM = Low; J = OPEN; end请老师看看这段代码是啥意思？谢谢了