fix: 修复类型错误

pages/API/create-selector-query/create-selector-query.uvue

@@ -93,8 +93,8 @@
     },
     onReady() {
       const instance2 = (this.$refs['multi-child'] as ComponentPublicInstance)
-      this.selectCount = instance2.$data['selectCount'] as Number
-      this.selectAllCount = instance2.$data['selectAllCount'] as Number
+      this.selectCount = instance2.$data['selectCount'] as number
+      this.selectAllCount = instance2.$data['selectAllCount'] as number
 
       this.testFields()
       this.testNode()