如题，广度搜索子节点，代码笔记：

-- 通过name获取节点
cc.exports.seekWidgetByName = function (node,name)
	
	if node and node:getName() == name then return node end

	local children = {node:getChildren()}

	local index = 0

	while index < #children do
		index = index + 1

		for k,v in pairs(children[index]) do
			if v.getName and v:getName() == name then
				return v 
			end
			if v.getChildren then
				table.insert(children,v:getChildren())
			end
		end
	end
	return nil
end

-- 通过tag获取
cc.exports.seekWidgetByTag = function (node,tag)
	
	if node and node:getTag() == tag then return node end

	local children = {node:getChildren()}

	local index = 0

	while index < #children do
		index = index + 1
		for k,v in pairs(children[index]) do
			if v.getTag and v:getTag() == tag then
				return v 
			end
			if v.getChildren then
				table.insert(children,v:getChildren())
			end
		end
	end
	return nil
end


-- 递归访问所有节点，执行func,参数为 当前节点node
cc.exports.doFuncVisit  = function (node,func)

	if (not node)or(not func) then return end
	
	func(node)
	if node.getChildrenCount and node:getChildrenCount() > 0 then
		for k,v in pairs(node:getChildren()) do
			doFuncVisit(v,func)
		end
	end
end