How does Lua determine if an element is included in an array?

In Lua, you can determine if an array contains an element by looping through the array and comparing each element individually. Here is an example code:

function containsElement(array, element)
    for i=1, #array do
        if array[i] == element then
            return true
        end
    end
    return false
end

-- 测试代码
array = {1, 2, 3, 4, 5}
element = 3
if containsElement(array, element) then
    print("数组中包含元素 " .. element)
else
    print("数组中不包含元素 " .. element)
end

Output/Result of the running:

数组中包含元素 3

The code above defines a function called containsElement that takes an array and an element as parameters. It then loops through the array, comparing each element to the given element. If a matching element is found, it returns true, otherwise it returns false.

In the testing code, an array and an element are defined, and the containsElement function is called to determine if the array contains the element. Depending on the result, the corresponding prompt is output.