此模块的文档可以在模块:If empty/doc创建
local p = {}
function p.main(frame)
local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false})
local lastk = 0
for k,v in ipairs(args) do
if v ~= '' then
return v
end
lastk = k
end
end
return p