Merge pull request #4014 from lison16/anchor

修复点击anchor-link后再滚动，然后点击刚刚点击的link，页面没有滚动反应的bug

src/components/anchor/anchor-link.vue

@@ -39,6 +39,8 @@ export default {
     methods: {
         goAnchor () {
             this.currentLink = this.href;
+            this.anchorCom.handleHashChange();
+            this.anchorCom.handleScrollTo();
             this.anchorCom.$emit('on-select', this.href);
             const isRoute = this.$router;
             if (isRoute) {