(glua)如何检查表格中是否没有var？

function checkVariable(table, variable)
    for key, value in pairs(table) do
        if key == variable then
            return false -- 变量存在
        end
    end
    return true -- 变量不存在
end

local myTable = {var1 = 1, var2 = 2, var3 = 3}
local variableToCheck = "var4"

if checkVariable(myTable, variableToCheck) then
    print("表格中不存在变量：" .. variableToCheck)
else
    print("表格中存在变量：" .. variableToCheck)
end

function checkVariable(table, variable)
    for key, _ in pairs(table) do
        if key == variable then
            return false -- 变量存在
        end
    end
    return true -- 变量不存在
end

local myTable = {var1 = 1, var2 = 2, var3 = 3}
local variableToCheck = "var4"

if checkVariable(myTable, variableToCheck) then
    print("表格中不存在变量：" .. variableToCheck)
else
    print("表格中存在变量：" .. variableToCheck)
end