【修改】bug

src/views/supply/engin/components/home_detail.vue

@@ -167,7 +167,7 @@
             </el-col>
             <el-col :span="24" class="item" v-if="!isDealer">
           <div class="label" >引用记录</div>
-          <div class="value">{{detailData.items[0].useRefCount}}</div>
+          <div class="value">{{detailData.items[0]&&detailData.items[0].useRefCount}}</div>
         </el-col>
           </el-row>
         </div>