## 一、定義： 僅限于組合動態列分組中 用于動態屬性的縱向小計，且縱向分組至少有兩列。 ## 二、示例 ### 1.創建數據集test ``` { "data": [{ "region": "華東", "sales": 1000, "gifts": 100, "month": "1月", "province": "安徽", "city": "合肥" },{ "region": "華東", "sales": 1000, "gifts": 100, "month": "1月", "province": "安徽", "city": "安慶" },{ "region": "華東", "sales": 1000, "gifts": 100, "month": "2月", "province": "安徽", "city": "安慶" },{ "region": "華東", "sales": 1000, "gifts": 100, "month": "2月", "province": "安徽", "city": "合肥" },{ "region": "華北", "sales": 1000, "gifts": 100, "month": "1月", "province": "河北", "city": "邯鄲" },{ "region": "華北", "sales": 1000, "gifts": 100, "month": "2月", "province": "河北", "city": "邯鄲" },{ "region": "華南", "sales": 2000, "gifts": 200, "month": "2月", "province": "廣東", "city": "廣州" },{ "region": "華南", "sales": 3000, "gifts": 300, "month": "1月", "province": "廣東", "city": "廣州" },{ "region": "華南", "sales": 5000, "gifts": 600, "month": "1月", "province": "廣東", "city": "深圳" },{ "region": "華南", "sales": 6000, "gifts": 600, "month": "2月", "province": "廣東", "city": "深圳" },{ "region": "華北", "sales": 7000, "gifts": 600, "month": "2月", "province": "河北", "city": "唐山" },{ "region": "華北", "sales": 7000, "gifts": 600, "month": "1月", "province": "河北", "city": "唐山" },{ "region": "華南", "sales": 2000, "gifts": 200, "month": "2月", "province": "廣西", "city": "南寧" },{ "region": "華南", "sales": 3000, "gifts": 300, "month": "1月", "province": "廣西", "city": "南寧" },{ "region": "華南", "sales": 5000, "gifts": 600, "month": "1月", "province": "廣西", "city": "桂林" },{ "region": "華南", "sales": 6000, "gifts": 600, "month": "2月", "province": "廣西", "city": "桂林" }] } ``` ### 2.設計界面如下(分組基本配置步驟省略)：  ### 3.設置分組依據  ### 4.設置計算字段  預覽效果：  ### 5.重新設置分組依據，先設置省份的分組依據為否，然后設置地區的分組依據為是  預覽效果：  *對比，4、5預覽效果，分組依據即小計計算的依據，根據這個依據字段，統計該分組下的數據值，然后在分組依據字段的下級列中顯示`合計`行，所以限定至少有兩列縱向分組*