懒，css,js,html主要代码都在这上面了

<div class="pageNav" ref="pageNav" @scroll="orderScroll"></div>


 orderScroll(e){
   let c = this.$refs.pageNav.scrollTop
   let h = this.$refs.pageNav.scrollHeight
   if(this.finshed == false){
     if(h - c == 200){
       this.pageNumber += 1
     }
   }
 },

.pageNav{
    width: 500px;
    height: 200px;
    position: relative;
    border: 1px solid #888888;
    margin: 10px auto;
    overflow-y: auto;
    display: flex;
    flex-wrap: wrap;
}