swiper實現滑動到某頁鎖住不讓滑動

var swiper = new Swiper('.swiper-container', {
    pagination: '.swiper-pagination',
    onTouchStart: function(swiper,even){
        swiper.unlockSwipeToPrev();
        swiper.unlockSwipeToNext();
        if(swiper.isEnd){
            swiper.lockSwipeToNext();
        }else if(swiper.activeIndex==0){
            swiper.lockSwipeToPrev();
        }
    }
});

 

swiper文檔(swiper3)：lockSwipeToNext