04.cocos2d-x多分辨率适配

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蓝色代表设计分辨率，灰色代表真机可见屏幕大小

好好上面这张理解图片

    director->getOpenGLView()->setDesignResolutionSize(960, 640, ResolutionPolicy::NO_BORDER);    //1.SHOW_ALL不变          //2.NO_BORDER剪裁（高度显示不完整）            //3.EXACT_FIT拉伸     //4.FIXED_HEIGHT高度不变，宽度剪裁或者留黑边      //5.FIXED_WIDTH宽度不变，高度度剪裁或者留黑边    Vec2 winSize = director->getWinSize();//ABCD    Vec2 visiableSize = director->getVisibleSize();//HIJK    Vec2 visiableOrigin = director->getVisibleOrigin();//K点    Rect vidiableRect = director->getOpenGLView()->getVisibleRect();//真机可视区域    //=====在屏幕左上角放置一张图片    auto director = Director::getInstance();    Rect vidiableRect = director->getOpenGLView()->getVisibleRect();//真机可视区域    ImageView* packImg = ImageView::create("Login/pack1.png");    this->addChild(packImg);    packImg->setAnchorPoint(Vec2(0, 1));//左上角       packImg>setPosition(Vec2(vidiableRect.origin.x,vidiableRect.origin.y+ vidiableRect.size.height));    //=====在屏幕左上角放置一张图片

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