註意事項：裁剪內容要用Sprite，不能換成ImageView

    local imagePath = "res/yk/china/advertisement/FbIntroductionBanner.png"
    local maskPath = "res/yk/china/advertisement/advertisementMask535x235.png"
    local clippingNode = cc.ClippingNode:create()
    local im = cc.Sprite:create(imagePath)
    local mask = cc.Sprite:create(maskPath)


    
 
local clipSize = mask:getContentSize()
    dump(clipSize)

    clippingNode:setContentSize(clipSize) --設置尺寸大小
    clippingNode:setStencil(mask)  --設置模板stencil
    clippingNode:setAlphaThreshold(0.05) --設置alpha閘值
    --

    --clippingNode:addChild(redPackage, 1)  --先添加標題,會完全顯示出來,因為跟模板一樣大小
    clippingNode:addChild(im,2
 
)       --會被裁減

    scene:addChild(clippingNode,9999)

cocos2dx-lua 裁剪ClippingNode