perf(picker-view): data

pages/component/picker-view/picker-view.uvue

@@ -23,6 +23,8 @@
 </template>
 
 <script lang="ts">
+    export default {
+        data() {
             const date = new Date()
             const _years : number[] = []
             const _year = date.getFullYear()
@@ -39,8 +41,6 @@
             for (let i = 1; i <= 31; i++) {
                 _days.push(i)
             }
-    export default {
-        data() {
             return {
                 title: 'picker-view',
                 years: _years as number[],