Question

我的移动应用程序移交项目中有8个问题调查。起初电晕没有提示我任何错误消息和应用程序工作正常，但当我再添加2个问题时，我开始收到此消息错误我不确定为什么错误是＆＃34;零值＆＃34;但我的代码看起来像这样。（第662至678行）

        function  checkEBASComplete()
        local tempScore = 0
        for i = 1, 10 do
            print("EBAS:"..ebasRating_Arr[i])
            tempScore = tempScore + ebasRating_Arr[i]

            if (ebasRating_Arr[i] == -1) then
                ebasScore = 0
                ebasScore_text.text = "Test Incomplete"
            else
                ebasScore = tempScore
                ebasScore_text.text = tostring(ebasScore)
            end

        end

        tempScore = 0
    end

    checkEBASComplete()

我在第110行有类似的东西。我再添加2个＆＃34; -1＆＃34; behide

 local ebasRating_Arr = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1}

有人能帮我这个吗？感谢所有帮助：D

新问题--------------------------------------------- ---------

这是我在705 - 711行的代码

function saveResults()

        local q = [[UPDATE EBAS_DEP SET rating1=']]..ebasRating_Arr[1] .. [[',rating2=']] .. ebasRating_Arr[2] .. [[',rating3=']] .. ebasRating_Arr[3] .. [[',rating4=']] .. ebasRating_Arr[4] .. [[',rating5=']] .. ebasRating_Arr[5] .. [[',rating6=']] .. ebasRating_Arr[6] .. [[',rating7=']] .. ebasRating_Arr[7] .. [[',rating8=']] .. ebasRating_Arr[8] .. [[',rating9=']] .. ebasRating_Arr[9] .. [[',rating10=']] .. ebasRating_Arr[10] .. [[',rating11=']] .. amtRating_Arr[1] .. [[',rating12=']] .. amtRating_Arr[2] .. [[',rating13=']] .. amtRating_Arr[3] .. [[',rating14=']] .. amtRating_Arr[4] .. [[',rating15=']] .. amtRating_Arr[5] .. [[',rating16=']] .. amtRating_Arr[6] .. [[',rating17=']] .. amtRating_Arr[7] .. [[',rating18=']] .. amtRating_Arr[8] .. [[',rating19=']] .. amtRating_Arr[9] .. [[',rating20=']] .. amtRating_Arr[10] .. [[',rating21=']] .. amtRating_Arr[11] .. [[',ebas_score=']] .. ebasScore ..[[',amt_score=']] .. amtScore ..  [['WHERE id=']].. _G.EBAS_ID..[[';]]
        db:exec( q )
        print(db:errcode(), db:errmsg())

    end

Answer 1

当ebasRating_Arr对于checkEBASComplete - 函数内的for循环而言太短时，会发生错误。您的原始表只有8个条目，但您的for循环检查表的10个条目。这意味着当您尝试访问9.条目时，错误就会发生，因为它不存在。

我建议将固定的for循环从1 to 10更改为相对for-loop 1 to the end of the array。这适用于#array（或Lua中的表）运算符。你的代码看起来像这样：

function checkEBASComplete()
    local tempScore = 0
    for i = 1, #ebasRating_Arr do       -- Changed to relative for-loop
        print("EBAS:"..ebasRating_Arr[i])
        tempScore = tempScore + ebasRating_Arr[i]
        if (ebasRating_Arr[i] == -1) then
            ebasScore = 0
            ebasScore_text.text = "Test Incomplete"
        else
            ebasScore = tempScore
            ebasScore_text.text = tostring(ebasScore)
        end
    end
    tempScore = 0
end

电晕运行时错误＆＃34;尝试连接字段＆＃39;？＆＃39; （零值）＆＃34;

1 个答案: