mounted() { window.addEventListener('scroll', this.handleScroll, true); // 监听(绑定)滚轮滚动事件 this.getBookList();//请求数据 }, destroyed() { window.removeEventListener('scroll', this.handleScroll, true); // 离开页面清除(移除)滚轮滚动事件 }, data() { return { taskList: [], totlePage: '', params: { page: 1, num: 4, }, count: '', showTxt: '', flags: true, }; }, methods: { handleScroll() { //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 - 200 || document.body.scrollHeight - 200; //滚动条到底部的条件 if (Math.ceil(scrollTop) + windowHeight >= scrollHeight - 200 && this.flags) { this.flags = false; this.fenye() //写后台加载数据的函数 console.log("距顶部" + scrollTop + "可视区高度" + windowHeight + "滚动条总高度" + scrollHeight); } }, fenye() { //获取列表之后 this.totlePage = Math.ceil(this.count / this.params.num); //页面触底事件 if (this.params.page >= this.totlePage) { this.showTxt = '加载完成'; return; } this.showTxt = '加载中...'; this.params.page++; this.getBookList() }, //获取书籍列表 getBookList() { let params = { type: 3, //类型 1音频 2文字 3视频 4直播 is_vip: 2, //是否为vip书籍 1否(默认) 2是 pay_type: 2, //付费类型 1免费 2付费 page: this.params.page, num: this.params.num, } this.$post("/books/book/book_list", params).then(res => { if (!res.error_code) { console.log(res.response_data, 'res') this.count = res.response_data.count; this.taskList = this.taskList.concat(res.response_data.lists); //合并数组 this.flags = true; } else { this.$toast(res.error_msg); console.log(res.error_msg, 'error') } }) }, }