Update index.jsx

Author: zhangjiayu1215

packages/ve-table/src/index.jsx

@@ -885,17 +885,13 @@ export default {
         },
         // 更新 virtual phantom 列表总高度
         setVirtualPhantomHeight() {
-            // 解决数据为空时，虚拟滚动区域高度问题
-            if (this.virtualScrollPositions.length === 0) {
-                this.$refs[this.virtualPhantomRef].style.height = "100%";
-                return;
-            }
             let totalHeight = 0;
-
-            totalHeight =
-                this.virtualScrollPositions[
-                    this.virtualScrollPositions.length - 1
-                ].bottom;
+            if (this.virtualScrollPositions.length) {
+                totalHeight =
+                    this.virtualScrollPositions[
+                        this.virtualScrollPositions.length - 1
+                    ].bottom;
+            }
 
             this.$refs[this.virtualPhantomRef].style.height =
                 totalHeight + "px";