From 09c64ba2541c9fefb6bc1564bce7904df899a04d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=99=BD=E8=8C=B6=E6=B8=85=E6=AC=A2?=
 <go_developer@163.com>
Date: Thu, 25 Dec 2025 17:47:59 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=A2=9E=E5=8A=A0=E6=95=B0=E7=BB=84?=
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---
 op_array/util.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/op_array/util.go b/op_array/util.go
index 2c3627b..0137d0f 100644
--- a/op_array/util.go
+++ b/op_array/util.go
@@ -72,6 +72,16 @@ func Group[Key comparable, Value any](dataList []Value, keyFormat func(item Valu
 	return res
 }
 
+// GroupToMap 数组数据按照指定 key 进行分组
+func GroupToMap[Key comparable, Value any](dataList []Value, keyFormat func(item Value) Key) map[Key][]Value {
+	dataTable := make(map[Key][]Value)
+	for _, item := range dataList {
+		key := keyFormat(item)
+		dataTable[key] = append(dataTable[key], item)
+	}
+	return dataTable
+}
+
 // TreeItem 数据结构
 type TreeItem[ID comparable, Value any] struct {
 	ID        ID                     `json:"id" dc:"数据ID"`