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lua - 没有返回正确的值

问题描述

你好，我有 2 个函数一个返回一个值

function AddPlayer(steamID, source)
    for i,p in ipairs(players) do
        if steamID == p[1] then
            players[i] = {p[1], p[2], source}
            return
        end
    end

    local initialPoints = GetInitialPoints(steamID)
    print(initialPoints)
    table.insert(players, {steamID, initialPoints, source})
end

function GetInitialPoints(steamID)
    local points = 0
    print(steamID)
    MySQL.Async.fetchAll("Select priority FROM queue where `identifier`= @identifier",
    {
        ['@identifier'] = steamID,
    },
    function(resp)
        points = resp[1].priority
        print(points)
    end)
    return points
end

所以打印实际上打印了正确的值（10,000）

但是在我打印初始点的函数 AddPlayer 的返回中，它打印的是 0，这是我在声明时设置的变量。当它需要打印我设置的点时。

标签： lua

解决方案

function AddPlayer(steamID, source)
    for i,p in ipairs(players) do
        if steamID == p[1] then
            players[i] = {p[1], p[2], source}
            return
        end
    end
    print(steamID)
    MySQL.Async.fetchAll(
        "Select priority FROM queue where `identifier`= @identifier",
        {
            ['@identifier'] = steamID,
        },
        function(resp)
            local initialPoints = resp[1].priority
            print(initialPoints)
            table.insert(players, {steamID, initialPoints, source})
        end
    )
end

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