修改空值展示

src/components/my-modal-form/my-modal-material.vue

@@ -74,7 +74,7 @@
                 <li v-for="(i,index) in restrictedPickingData" :key="index">
                   <div style="width:30%">
                     <span class="cl-blue">推荐卷</span><br>
-                    <span>长度</span>{{i.quantity}}m
+                    <span>长度</span>{{i.quantity || 1}}m
                   </div>
                   <div>
                     <span>标签值</span>{{i.rfidCode}}<br>