【入门夯实】表的键值互换：反查表的一行构建

local function findIdByName(name)
    for id, pname in pairs(nameById) do
        if pname == name then
            return id
        end
    end
end

local nameById = { [101] = "裁决持有者", [102] = "沙城老兵" }
local idByName = {}
for id, name in pairs(nameById) do
    idByName[name] = id
end
print(idByName["裁决持有者"])

local function biAdd(fwd, rev, id, name)
    fwd[id] = name
    rev[name] = id
end
local fwd, rev = {}, {}
biAdd(fwd, rev, 101, "裁决持有者")
print(fwd[101], rev["裁决持有者"])