datepick string

@@ -23,7 +23,7 @@
             <Input v-model="product.factoryCode" placeholder="请输入..." />
         </Form-item>
         <Form-item label="货品年">
-            <Date-picker :value="product.goodsYears" type="year" placeholder="选择年" disabled>
+            <Date-picker :value="product.goodsYears.toString()" type="year" placeholder="选择年" disabled>
             </Date-picker>
         </Form-item>
         <Form-item label="货品季">