Lua 按不同字段对表格进行两次排序-解网

问：

下面是我想要排序的示例表结构。

Data = {
    ["C1_RN1::F1"] = {
        ["class"] = "Hunter",
        ["name"] = "C1",
        ["faction"] = "Faction",
        ["race"] = "Human",
        ["realm"] = "RN1",
    },
    ["C2_RN1::F1"] = {
        ["class"] = "Priest",
        ["name"] = "C2",
        ["faction"] = "Faction",
        ["race"] = "Undead",
        ["realm"] = "RN1",
    },
    ["C3_RN1::F1"] = {
        ["class"] = "Hunter",
        ["name"] = "C3",
        ["faction"] = "Faction",
        ["race"] = "Human",
        ["realm"] = "RN1",
    }
}

因此，例如，我想按字母顺序排序，并按字母顺序对所有“人类”种族字符进行排序，并按独立于另一个“种族”的字母顺序对任何其他“种族”进行排序。raceclass

我知道如何通过将所有字符名称转储到具有与表相同的键的第二个表中来仅按 1 排序，然后使用和 a 将数据与小于运算符（例如 .datadatatable.sortdata[a].race < data[b].race

这是我尝试用于基本排序的函数，但这在使用 Lua 5.1 不起作用，我收到一个错误，说应该在 .=<

local function SortThis()
    local temp = {}

    for c in pairs(Data) do
        table.insert(temp, c);
    end

    table.sort(temp, function(a, b)
        return Data[a].race < RestXP_Data[b].race;
    end)
end

多维阵列 Lua LUA 表进行排序

local data = {
    ["C1_RN1::F1"] = {
        ["class"] = "Warrior",
        ["name"] = "C1",
        ["faction"] = "Faction",
        ["race"] = "Human",
        ["realm"] = "RN1",
    },
    ["C2_RN1::F1"] = {
        ["class"] = "Priest",
        ["name"] = "C2",
        ["faction"] = "Faction",
        ["race"] = "Undead",
        ["realm"] = "RN1",
    },
    ["C3_RN1::F1"] = {
        ["class"] = "Hunter",
        ["name"] = "C3",
        ["faction"] = "Faction",
        ["race"] = "Human",
        ["realm"] = "RN1",
    }
}

local collapsed = {}

for key, value in pairs(data) do
    table.insert(collapsed, value)
end

table.sort(collapsed, function (a, b)
    if a.race == b.race then
        return a.class < b.class
    end

    return a.race < b.race
end)

for _, character in ipairs(collapsed) do
    print(character.name, character.race, character.class)
end

C3  Human   Hunter
C1  Human   Warrior
C2  Undead  Priest

如果您有很多键要比较，则可以遍历它们。

table.sort(collapsed, function (a, b)
    local order = { 'race', 'class', 'realm' }

    for _, key in ipairs(order) do
        if a[key] ~= b[key] then
            return a[key] < b[key]
        end
    end
end)

Lua 按不同字段对表格进行两次排序

Lua sorting a table twice by different fields

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