//控制页面滚动

    var startScroll, touchStart, touchCurrent;

    swiper.slides.on('touchstart', function(e) {

        startScroll = this.scrollTop;

        touchStart = e.targetTouches[0].pageY;

    }, true);

    swiper.slides.on('touchmove', function(e) {

        touchCurrent = e.targetTouches[0].pageY;

        var touchesDiff = touchCurrent - touchStart;

        var slide = this;

        var onlyScrolling =

            (slide.scrollHeight > slide.offsetHeight) && //allow only when slide is scrollable

            (

                (touchesDiff < 0 && startScroll === 0) || //start from top edge to scroll bottom

                (touchesDiff > 0 && startScroll === (slide.scrollHeight - slide.offsetHeight)) || //start from bottom edge to scroll top

                (startScroll > 0 && startScroll < (slide.scrollHeight - slide.offsetHeight)) //start from the middle

            );

        if (onlyScrolling) {

            e.stopPropagation();

        }

    }, true);