swiper实现上下滑动翻页，内置内容页也滚动

//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);