Lua实现截取字符串并打印返回的数组

function  StringSplit(input,parttern)
	
	input=tostring(input);
	parttern=tostring(parttern);
	if (parttern==" ") then return false end
	local pos,array=0,{}

	for st,ed in function() return string.find(input,parttern,pos,true) end do
		table.insert(array, string.sub(input,pos,st-1))
		pos=ed+1
	end
	table.insert(array, string.sub(input,pos))
	setmetatable(array,{__tostring=function (array)
		str=""
		for k,v in pairs(array) do
			str=str .. ' ' ..v
		end
		return str

	end})
	return array
end

function string.splitMatch(input,parttern)
	array={}
	for word in string.gmatch(input, parttern) do
		table.insert(array,word)
	end
	return array
end