增加了先前缺失的现金流量表的导入模块。

quantitative_data/数据批量导入.ipynb

@@ -92,6 +92,8 @@
     "    import_adj_factor,\n",
     "    import_adj_factor_batch,\n",
     "    import_financial_statements,\n",
+    "    import_cashflow,\n",
+    "    import_cashflow_batch,\n",
     "    import_index_daily,\n",
     "    get_all_stock_codes,\n",
     "    get_stock_codes_from_db,\n",
@@ -519,13 +521,56 @@
     ")"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# 验证财务数据\n",
+   {
+    "cell_type": "markdown",
+    "metadata": {},
+    "source": [
+     "### 7.1 单独导入现金流量表 (cashflow_vip VIP 接口)\n",
+     "\n",
+     "`import_cashflow` 使用 Tushare VIP 接口 `cashflow_vip`，支持两种方式：\n",
+     "- 按报告期全市场导入: `import_cashflow(period=\"20181231\")`，对应示例 `df2 = pro.cashflow_vip(period='20181231', fields='')`\n",
+     "- 按股票导入: `import_cashflow(ts_code=\"000001.SZ\", start_date=..., end_date=...)`，或批量 `import_cashflow_batch(stock_list, ...)`"
+    ]
+   },
+   {
+    "cell_type": "code",
+    "execution_count": null,
+    "metadata": {},
+    "outputs": [],
+    "source": [
+     "# 方式A: 按报告期全市场导入 (推荐，一次拉取全市场某报告期数据，调用次数最少)\n",
+     "# n = import_cashflow(period=\"20241231\")  # 对应 pro.cashflow_vip(period='20241231', fields='')\n",
+     "# print(f\"导入 20241231 报告期现金流量表: {n} 条\")\n",
+     "\n",
+     "# 方式B: 按股票列表批量导入 (适合补单只/部分股票数据)\n",
+     "if 'stock_list' not in dir():\n",
+     "    stock_list = get_stock_codes_from_db()\n",
+     "\n",
+     "import_cashflow_batch(\n",
+     "    stock_list,\n",
+     "    start_date=\"2010-01-01\",\n",
+     "    end_date=\"2025-12-31\",\n",
+     ")"
+    ]
+   },
+   {
+    "cell_type": "code",
+    "execution_count": null,
+    "metadata": {},
+    "outputs": [],
+    "source": [
+     "# 方式C: 导入单只股票的现金流量表\n",
+     "# n = import_cashflow(ts_code=\"000001.SZ\", start_date=\"2010-01-01\", end_date=\"2025-12-31\")\n",
+     "# print(f\"导入 000001.SZ 现金流量表: {n} 条\")"
+    ]
+   },
+   {
+    "cell_type": "code",
+    "execution_count": null,
+    "metadata": {},
+    "outputs": [],
+    "source": [
+     "# 验证财务数据\n",
     "conn = get_pg_connection()\n",
     "cursor = conn.cursor()\n",
     "for table in [\"income\", \"balancesheet\", \"cashflow\", \"fina_indicator\"]:\n",