Formula

CommonFun.calcBuff_7900

function CommonFun.calcBuff_7900(srcUser, targetUser, a, b, c, d, lv)
  if srcUser == nil or targetUser == nil then
    return 0
  end
  local Num = srcUser:GetBuffLayer(a)
  local Num2 = b
  local A = Num - Num2
  return A
end