mounted() {      var self = this;      for (var i = 0; i < self.$refs.mySwiper.swiper.pagination.bullets.length; i++) {       console.log(self.$refs.mySwiper.swiper)       console.log(this.$refs.mySwiper.swiper)        self.$refs.mySwiper.swiper.pagination.bullets[i].onmouseover = (function(num) {          return function () {            self.$refs.mySwiper.swiper.slideTo(num + 1);          }        })(i)      }    }

　　切记切记！！！！