清除时间器

src/utils/directive.js

@@ -5,14 +5,15 @@ Vue.directive('loadmore', {
     // 获取element-ui定义好的scroll盒子
     const SELECTWRAP_DOM = el.querySelector('.scroll-box')
     console.log(SELECTWRAP_DOM);
-    let flag = true;
+    let flag = true, timeoutId = null;
     SELECTWRAP_DOM.addEventListener('scroll', function () {
       // console.log(this.scrollHeight, this.scrollTop, this.clientHeight);
       const CONDITION = this.scrollTop <= 20;
       if (CONDITION) {
         if(flag) {
           flag = false;
-          setTimeout( () => {
+          timeoutId && clearTimeout(timeoutId);
+          timeoutId = setTimeout( () => {
             binding.value()
             flag = true;
           }, 50)