Formula
CommonFun.calcBuff_5291
function CommonFun.calcBuff_5291(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local skilllv_1 = srcUser:GetLernedSkillLevel(a)
local Value = srcUser:GetGemValue(c)
local A = skilllv_1 * b + Value / d
return A
end