Formula
CommonFun.calcBuff_6874
function CommonFun.calcBuff_6874(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local A = 0
local skilllv = srcUser:GetLernedSkillLevel(c)
if 1 <= skilllv then
A = a * skilllv + b
end
return A
end