Formula
CommonFun.calcValidDFSPNum
function CommonFun.calcValidDFSPNum(maxjoblv, limitnum, packageown)
if 160 < maxjoblv then
return 0
elseif maxjoblv <= 133 then
return limitnum - packageown
else
return limitnum - (maxjoblv - 133) * 3 - packageown
end
end