显示成本价

src/views/product/productList/index.vue

@@ -147,6 +147,7 @@
         </el-table-column>
         <el-table-column prop="store_name" label="商品名称" min-width="200" />
         <!-- <el-table-column prop="type_name" label="商品类型" min-width="200" /> -->
+        <el-table-column prop="cost" label="成本价" min-width="70" />
         <el-table-column prop="price" label="商品售价" min-width="90" />
         <el-table-column prop="sales" label="销量" min-width="90" />
         <el-table-column prop="stock" label="库存" min-width="90" />