local bgColor = ccc3(, , ) --非高亮区域颜色

    local bgOpacity = 0.6 --非高亮区域透明度

    local layerColor = CCLayerColor:create(ccc4(bgColor.r, bgColor.g, bgColor.b, bgOpacity * ), size.width, size.height)

    local clipNode = CCClippingNode:create();

    clipNode:setInverted(true)--设定遮罩的模式true显示没有被遮起来的纹理   如果是false就显示遮罩起来的纹理

    clipNode:setAlphaThreshold() --设定遮罩图层的透明度取值范围

    clipNode:addChild(layerColor)

    self:addChild(clipNode)

    local batchNode = CCSpriteBatchNode:create("Images/circle.png")

    local circleSpr = CCSprite:createWithTexture(batchNode:getTexture())

    local circleSize = circleSpr:getContentSize()

    local widthPara

    local heightPara

    local rectArray = {

                         [] = CCRect(, , , ),

                         [] = CCRect(, , , ),

                         [] = CCRect(, , , ),

                         [] = CCRect(, , , ),

                        }

    for i, rect in ipairs(rectArray) do

        local circleSpr = CCSprite:createWithTexture(batchNode:getTexture())

        if not widthPara then

            local circleSize = circleSpr:getContentSize()

            --宽度和高度参数，1.4142为根号2，矩形的外接椭圆的长轴与短轴长度

            widthPara = 1.4142 / circleSize.width

            heightPara = 1.4142 / circleSize.height

        end

        local fScaleX = widthPara * rect.size.width

        local fScaleY = heightPara * rect.size.height

        circleSpr:setScaleX(fScaleX)

        circleSpr:setScaleY(fScaleY)

        circleSpr:setPosition(rect:getMidX(), rect:getMidY())

        batchNode:addChild(circleSpr)

    end

    clipNode:setStencil(batchNode) --关键代码