总是返回不正确的简单数学lua [英] Always returning incorrect simple math lua

问题描述

我有一个非常基本的Lua脚本，会问一个数学问题

I have a very basic Lua script that asks a math question

math.randomseed(os.time())
        print ("Let's play Math")
        a = math.random(1,10)
        b = math.random(1,10)
        io.write("What is " .. a .. " + " .. b .. "?")
        answer = io.read()
        correct = (a + b)
            if (answer == correct) then
                print ("Correct")
            else
                print ("Wrong")
                print (correct) --For debug
            end

由于某种原因，即使回答正确，我也总是会变得不正确".我还打印出正确的答案，只是为了确保程序正确地处理了数学运算.我的错误在哪里?

For some reason, I am always getting "incorrect" even when answered correctly. I also print out the correct answer, just to make sure the program is handling the math correctly. Where is my mistake?

推荐答案

answer包含字符串，因此从不等于数字.

answer contains a string and so is never equal to a number.

只需添加

    answer = tonumber(answer)

之后

    answer = io.read()

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