Formula
CommonFun.calcBuff_7700
function CommonFun.calcBuff_7700(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local IBaseLv = srcUser.BaseLv
local A = math.max((IBaseLv - 120) * a, 0)
return A
end