✨(component): 新增 table 组件 columns 配置 totalRow 属性, 用于支持列统计

package/document-component/src/document/zh-CN/components/table.md

@@ -912,6 +912,65 @@ export default {
 
 :::
 
+::: title 合并列值
+:::
+
+::: demo 通过 `columns` 配置 `type:'number'` 开启序号列。
+
+<template>
+  <lay-table :columns="columns26" :dataSource="dataSource26"></lay-table>
+</template>
+
+<script>
+import { ref } from 'vue'
+
+export default {
+  setup() {
+
+    const columns26 = [
+      {
+        title:"账户",
+        width:"200px",
+        key:"username"
+      },{
+        title:"密码",
+        width: "300px",
+        key:"password"
+      },{
+        title:"性别",
+        key:"sex",
+        totalRow:"合并:"
+      },{
+        title:"年龄",
+        width: "300px",
+        key:"age",
+        totalRow: true
+      },{
+        title:"备注",
+        width: "180px",
+        key:"remark",
+        ellipsisTooltip: true
+      }
+    ]
+
+    const dataSource26 = [
+      {username:"root", password:"root",sex:"男", age:"18", remark: 'layui - vue（谐音：类 UI) '},
+      {username:"root", password:"root",sex:"男", age:"18", remark: 'layui - vue（谐音：类 UI) '},
+      {username:"woow", password:"woow",sex:"男", age:"20", remark: 'layui - vue（谐音：类 UI) '},
+      {username:"woow", password:"woow",sex:"男", age:"20", remark: 'layui - vue（谐音：类 UI) '},
+      {username:"woow", password:"woow",sex:"男", age:"20", remark: 'layui - vue（谐音：类 UI) '}
+    ]
+
+    return {
+      columns26,
+      dataSource26,
+    }
+  }
+}
+</script>
+
+:::
+
 ::: title 完整表格
 :::