Lua 打印输出完整 table 表

代码如下:

function dump(o)
    local t = {}
    local _t = {}
    local _n = {}
    local space, deep = string.rep(' ', 2), 0
    local type = _ENV.type
    local function _ToString(o, _k)
        if type(o) == ('number') then
            table.insert(t, o)
        elseif type(o) == ('string') then
            table.insert(t, string.format('%q', o))
        elseif type(o) == ('table') then
            local mt = getmetatable(o)
            if mt and mt.__tostring then
                table.insert(t, tostring(o))
            else
                deep = deep + 2
                table.insert(t, '{')
                for k, v in pairs(o) do
                    if v == _G then
                        table.insert(t, string.format('\r\n%s%s\t=%s ;', string.rep(space, deep - 1), k, "_G"))
                    elseif v ~= package.loaded then
                        if tonumber(k) then
                            k = string.format('[%s]', k)
                        else
                            k = string.format('[\"%s\"]', k)
                        end
                        table.insert(t, string.format('\r\n%s%s\t= ', string.rep(space, deep - 1), k))
                        if v == nil then
                            table.insert(t, string.format('%s ;', "nil"))
                        elseif type(v) == ('table') then
                            if _t[tostring(v)] == nil then
                                _t[tostring(v)] = v
                                local _k = _k .. k
                                _t[tostring(v)] = _k
                                _ToString(v, _k)
                            else
                                table.insert(t, tostring(_t[tostring(v)]))
                                table.insert(t, ';')
                            end
                        else
                            _ToString(v, _k)
                        end
                    end
                end
                table.insert(t, string.format('\r\n%s}', string.rep(space, deep - 1)))
                deep = deep - 2
            end
        else
            table.insert(t, tostring(o))
        end
        table.insert(t, " ;")
        return t
    end
    t = _ToString(o, '')
    return table.concat(t)
end

使用示例:

-- 定义表数据
local t = {
	"Apple", "Banana", "Pear",
	["Vegetables"]={
		"Tomato","Potato"
	},
}
-- 输出表信息
print(dump(t))

转载请标注原作者和原文章链接
https://blog.youkuaiyun.com/qq_66458871/article/details/142577363