From 4b5435e03916bd19e2f04616d250aa841de0c200 Mon Sep 17 00:00:00 2001
From: loshiqi <553578653@qq.com>
Date: Thu, 27 Oct 2022 15:09:59 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0map=E5=88=87=E7=89=87?=
 =?UTF-8?q?=E5=80=BC=E9=A1=BA=E5=BA=8F=E6=8E=92=E5=BA=8F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 map.go      | 40 ++++++++++++++++++++++++++++++++++++++++
 map_test.go | 13 +++++++++++--
 2 files changed, 51 insertions(+), 2 deletions(-)

diff --git a/map.go b/map.go
index 7b88735..8165b79 100644
--- a/map.go
+++ b/map.go
@@ -202,3 +202,43 @@ func HttpBuildStringQuery(data map[string]string) string {
 
 	return strings.Trim(query, "&")
 }
+
+/**
+ * 对map切片 按值进行顺序
+ * @param order desc/asc MapDate []map[string]interface{}
+ * @2022/10/27
+ * @lo
+ */
+func MapSort(order, val string, MapDate []map[string]interface{}) ([]map[string]interface{}, error) {
+	type KVPair struct {
+		Key int
+		Val string
+	}
+	res := []map[string]interface{}{}
+	if order != "desc" && order != "asc" {
+		return res, errors.New("order parameter err")
+	}
+	if val == "" {
+		return res, errors.New("val parameter err")
+	}
+	if len(MapDate) < 1 {
+		return res, errors.New("MapDate parameter err")
+	}
+	tmpList := []KVPair{}
+	for k, item := range MapDate {
+		tmpList = append(tmpList, KVPair{Key: k, Val: ToStr(item[val])})
+	}
+	if order == "desc" {
+		sort.Slice(tmpList, func(i, j int) bool {
+			return tmpList[i].Val > tmpList[j].Val // 降序
+		})
+	} else {
+		sort.Slice(tmpList, func(i, j int) bool {
+			return tmpList[i].Val < tmpList[j].Val // 升序
+		})
+	}
+	for _, tmp := range tmpList {
+		res = append(res, MapDate[tmp.Key])
+	}
+	return res, nil
+}
diff --git a/map_test.go b/map_test.go
index 79e17fa..4c1954a 100644
--- a/map_test.go
+++ b/map_test.go
@@ -6,10 +6,19 @@ import (
 
 func Test_HttpBuildQuery(t *testing.T) {
 
-	list := map[string]string{"a": "b", "": "cdd", "b": ""}
+	a := map[string]interface{}{"id": "1", "name": "8","price":"2.3"}
+	b := map[string]interface{}{"id": "2", "name": "7","price":"2.8"}
+	c := map[string]interface{}{"id": "3", "name": "9","price":"2.1"}
+	list := []map[string]interface{}{}
+	list = append(list, a)
+	list = append(list, b)
+	list = append(list, c)
+	//ret := HttpBuildQuery(list)
+	ret, err := MapSort("asc", "name", list)
 
-	ret := HttpBuildQuery(list)
+	if err != nil {
 
+	}
 	t.Log(ret)
 
 }