local tconcat = table.concat
local tinsert = table.insert
local srep = string.rep
function print_r(root)
local cache = { [root] = "." }
local function _dump(t,space,name)
local temp = {}
for k,v in pairs(t) do
local key = tostring(k)
if cache[v] then
tinsert(temp,"+" .. key .. " {" .. cache[v].."}")
elseif type(v) == "table" then
local new_key = name .. "." .. key
cache[v] = new_key
tinsert(temp,"+" .. key .. _dump(v,space .. (next(t,k) and "|" or " " ).. srep(" ",#key),new_key))
else
tinsert(temp,"+" .. key .. " [" .. tostring(v).."]")
end
end
return tconcat(temp,"\n"..space)
end
print(_dump(root, "",""))
end
簡單一點,可以按照如下寫
--列印table
function print_t(root)
local cache = { [root] = "." }
local function _dump(t,space,name)
local temp = {}
for k,v in pairs(t) do
local key = tostring(k)
if cache[v] then
table.insert(temp,"+" .. key .. " {" .. cache[v].."}")
elseif type(v) == "table" then
local new_key = name .. "." .. key
cache[v] = new_key
table.insert(temp,"+" .. key .. _dump(v,space .. (next(t,k) and "|" or " " )..
string.rep(" ",#key),new_key))
else
table.insert(temp,"+" .. key .. " [" .. tostring(v).."]")
end
end
return table.concat(temp,"\n"..space)
end
print(_dump(root, "",""))
end