下拉框下拉到底之后 去执行点啥
mounted() {let that = this;this.$nextTick(() => {// this.initScroll()window.onscroll = function () {//变量scrollTop是滚动条滚动时，距离顶部的距离var scrollTop =document.documentElement.scrollTop || document.body.scrollTop;//变量windowHeight是可视区的高度var windowHeight =document.documentElement.clientHeight || document.body.clientHeight;//变量scrollHeight是滚动条的总高度var scrollHeight =document.documentElement.scrollHeight || document.body.scrollHeight;//滚动条到底部的条件if (scrollTop + windowHeight == scrollHeight) {//写后台加载数据的函数 一定要用thatthat.getList();}};});},