How to read whether a number is even or odd in Lua

1. Because Lua does not have integers, whether it is / or % gets decimals, so if you want to get even or odd numbers, you need to implement it yourself
2. The code is as follows

--是否是偶数
function IsOuNumber(num)
    local num1,num2=math.modf(num/2)--返回整数和小数部分
    if(num2==0)then
        return true
    else
        return false
    end
end