Formula
CommonFun.calcBuff_7830
function CommonFun.calcBuff_7830(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local skilllv = srcUser:GetLernedSkillLevel(a)
local A = c
if b <= skilllv then
A = d
end
return A
end