cocos2dx之 渐变层

--渐变颜色区域
local startColor  = param and param.startColor or cc.c4b(255,255,255)
local endColor    = param and param.endColor or cc.c4b(255,0,255)
--渐变层
local layer = cc.LayerGradient:create(startColor,endColor)
self:addChild(layer)