feat: 采购端物品清单支持批量设置数量与单价，仅开发环境可用

src/views/purchasingManage/purchaseOrder/components/inventoryTableNew.vue

@@ -37,6 +37,11 @@
               valueKey="taxRate"
               @success="setAllTaxRateChange"
             />
+            <!-- 批量设置数量与单价：仅开发环境提供 -->
+            <setAllCountPrice
+              :disabled="tableBusy || !selection.length"
+              @success="setAllCountPriceChange"
+            />
           </div>
         </div>
       </template>
@@ -668,6 +673,8 @@
   import { changeCount, getAllPrice, getAllDiscountPrice, formatPrice } from '@/BIZComponents/setProduct.js';
   import { queryHistoricalUnitPrice } from '@/api/purchasingManage/purchaseOrder';
   import setAllValue from '@/BIZComponents/setAllValue.vue'; //批量修改
+  import setAllCountPrice from '@/BIZComponents/setAllCountPrice.vue'; //批量修改数量与单价
+  import { IS_DEV } from '@/config/setting'; //是否开发环境
   const dayjs = require('dayjs');
 
   export default {
@@ -707,7 +714,8 @@
       productList,
       billDetailDialog,
       headList,
-      setAllValue
+      setAllValue,
+      setAllCountPrice
     },
     computed: {
       tableBusy() {
@@ -1222,6 +1230,41 @@
           this.getNotaxSinglePrice();
         });
       },
+      /**
+       * 批量设置数量与单价：只作用于勾选的行，仅开发环境可用。
+       * 数量对应采购端的 purchaseCount，单价对应 singlePrice（含税单价），
+       * 写完只重算这几行，计量数量、总重、合计、折让、不含税单价同步更新。
+       */
+      setAllCountPriceChange({ count, singlePrice }) {
+        if (!IS_DEV || this.tableBusy) return;
+        const indexS = this.getSelectedIndexes();
+        if (!indexS.length) {
+          this.$message.warning('请先勾选需要设置的行');
+          return;
+        }
+        indexS.forEach((i) => {
+          const row = this.form.datasource[i];
+          if (!row) return;
+          if (count !== undefined && count !== null) {
+            this.$set(row, 'purchaseCount', count);
+          }
+          if (singlePrice !== undefined && singlePrice !== null) {
+            this.$set(row, 'singlePrice', singlePrice);
+          }
+        });
+        this.recalculateTableOnce(indexS);
+      },
+      // 勾选行在数据源中的下标：按 row-key 匹配，不依赖 key 与下标一一对应
+      getSelectedIndexes() {
+        const keys = new Set(this.selection.map((item) => item.key));
+        const indexS = [];
+        this.form.datasource.forEach((row, index) => {
+          if (keys.has(row.key)) {
+            indexS.push(index);
+          }
+        });
+        return indexS;
+      },
       formatPrice,
       async getPurchaseSinglePrice(row) {
         this.purchaseSinglePriceData = [];