在LUA中将数组转换为字符串

Question

试图将其转换为字符串 customLog2 = {} 看起来真的很像 Log = { {Group = ID, Pos = Numbers}, {Group = ID, Pos = Numbers} } 我试过这个

local Data = string.format( "LogBook = %s ", customLog2 )

但是因为 CustomLog 是一个数组而不是字符串或数字，所以我无法插入它。我试图将数组转换为这个VariableFile:write(Data) 的字符串，所以如果有人能提供帮助，那将是非常感谢的。

所以我希望我的输出看起来像这样 "local Data = string.format( "LogBook = %s ", customLog2 )" 这样我就可以使用 :write 然后在我新创建的文件中它应该看起来像这样 Log = { {Group = ID, Pos = Numbers}, {Group = ID, Pos = Numbers} }

所以这个函数的工作需要一件事。

function TableSerialization(t, i)
    local text = "{\n"
    local tab = ""
    for n = 1, i + 1 do                                                                 --controls the indent for the current text line
        tab = tab .. "\t"
    end
    for k,v in pairs(t) do
        if type(k) == "string" then
            text = text .. tab .. "['" .. k .. "'] = "
        else
            text = text .. tab .. "[" .. k .. "] = "
        end
        if type(v) == "string" then
            text = text .. "'" .. v .. "',\n"
        elseif type(v) == "number" then
            text = text .. v .. ",\n"
        elseif type(v) == "table" then
            text = text .. TableSerialization(v, i + 1)
        elseif type(v) == "boolean" then
            if v == true then
                text = text .. "true,\n"
            else
                text = text .. "false,\n"
            end
        elseif type(v) == "function" then
            text = text .. v .. ",\n"
        elseif v == nil then
            text = text .. "nil,\n"
        end
    end
    tab = ""
    for n = 1, i do                                                                     --indent for closing bracket is one less then previous text line
        tab = tab .. "\t"
    end
    if i == 0 then
        text = text .. tab .. "}\n"                                                     --the last bracket should not be followed by an comma
    else
        text = text .. tab .. "},\n"                                                    --all brackets with indent higher than 0 are followed by a comma
    end
    return text
end

我的输入数组可以说看起来像这样 Log = { Group = WestAPC } 现在这不起作用，因为 WestAPC 不是字符串，但如果 WestAPC 看起来像这样的“WestAPC”它可以工作。我需要它不是字符串形式。

Answer 1

明确地说，customLog 是一个表——即键值对的关联数组。这是一种遍历所有键/值对并将它们连接成一个字符串的简单方法：

s = ""

t = {"a", "b", "c", 123, 456, 789} -- sample table
t.someKey = "some value" -- just an extra key value, to show that keys can be strings too

for k, v in pairs(t) do
    s = s .. k .. ":" .. v .. "\n" -- concatenate key/value pairs, with a newline in-between
end

print(s)

当然，如果键的值是另一个表{}，那么您将需要一些额外的逻辑来递归地遍历这些嵌套表。我会把它留给你作为练习:)

编辑 1： 将表格打印为字符串，显示变量值

s = ""
local ID = 123
local Numbers = 456
local Log = { {Group = ID, Pos = Numbers}, {Group = ID, Pos = Numbers} }

s = s .. "{"
for k, v in next, Log do
    s = s .. "{"

    for vk, vv in next, v do
        if next(v, vk) ~= nil then
            s = s .. vk .. " = " .. vv .. ", "
        else
            s = s .. vk .. " = " .. vv  
        end
    end

    if next(Log, k) ~= nil then
        s = s .. "}, "
    else
        s = s .. "}"
    end

end
s = s .. "}"

print(s)

编辑 2： 将表格打印为字符串，显示变量名

s = ""
local ID = 123
local Numbers = 456
local Log = { {Group = ID, Pos = Numbers}, {Group = ID, Pos = Numbers} }

s = s .. "{"
for k, v in next, Log do
    s = s .. "{"

    i = 1
    for vk, vv in next, v do
        name = debug.getlocal(1, i)
        if next(v, vk) ~= nil then
            s = s .. vk .. " = " .. name .. ", "
        else
            s = s .. vk .. " = " .. name
        end
        i = i + 1
    end

    if next(Log, k) ~= nil then
        s = s .. "}, "
    else
        s = s .. "}"
    end

end
s = s .. "}"

print(s)