fix: update review

packages/scrollbar/src/bar.ts

@@ -14,7 +14,7 @@ export default {
   setup(props) {
     const instance = getCurrentInstance()
     const thumb = ref(null)
-    const wrap = inject('scroll-bar-wrap', {}) as Ref
+    const wrap = inject('scroll-bar-wrap', {} as Ref<Nullable<HTMLElement>>)
     const bar = computed(() => {
       return BAR_MAP[props.vertical ? 'vertical' : 'horizontal']
     })

packages/scrollbar/src/index.ts

@@ -12,10 +12,22 @@ export default {
 
   props: {
     native: Boolean,
-    wrapStyle: {},
-    wrapClass: {},
-    viewClass: {},
-    viewStyle: {},
+    wrapStyle: {
+      type: [String, Array],
+      default: '',
+    },
+    wrapClass: {
+      type: [String, Array],
+      default: '',
+    },
+    viewClass: {
+      type: [String, Array],
+      default: '',
+    },
+    viewStyle: {
+      type: [String, Array],
+      default: '',
+    },
     noresize: Boolean, // 如果 container 尺寸不会发生变化，最好设置它可以优化性能
     tag: {
       type: String,