From 43c2d780507fd68916e0d005aa9a98c769518e55 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=82=B9=E6=BD=87=E9=98=B3?= <wanna_zxy@yeah.net>
Date: Mon, 13 Nov 2023 13:56:25 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=B8=80=E4=B8=AA=E8=8E=B7?=
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---
 Elight.Utility/Extensions/ConvertorHelper.cs | 57 +++++++++++++++++++-
 1 file changed, 56 insertions(+), 1 deletion(-)

diff --git a/Elight.Utility/Extensions/ConvertorHelper.cs b/Elight.Utility/Extensions/ConvertorHelper.cs
index 8bb0c5a..05f3c49 100644
--- a/Elight.Utility/Extensions/ConvertorHelper.cs
+++ b/Elight.Utility/Extensions/ConvertorHelper.cs
@@ -140,6 +140,61 @@ namespace Elight.Utility.Extensions
             DateTime dtResult = dtStart.Add(toNow);
             return dtResult;
         }
-        
+
+    }
+
+    public static class DateHelper
+    {
+        public static DateTime GetStartDateOfDay(DateTime date)
+        {
+            return date.Date;
+        }
+        public static DateTime GetEndDateOfDay(DateTime date)
+        {
+            return date.Date.AddDays(1).AddSeconds(-1);
+        }
+        public static DateTime GetStartDateOfMonth(DateTime date)
+        {
+            return date.AddDays(1 - date.Day).Date;
+        }
+        public static DateTime GetEndDateOfMonth(DateTime date)
+        {
+            return GetStartDateOfMonth(date).AddMonths(1).AddSeconds(-1);
+        }
+        public static DateTime GetStartDateOfYear(DateTime date)
+        {
+            return date.AddDays(1 - date.Day).AddMonths(1 - date.Month).Date;
+        }
+        public static DateTime GetEndDateOfYear(DateTime date)
+        {
+            return GetStartDateOfYear(date).AddYears(1).AddSeconds(-1);
+        }
+        public static List<DateTime> GetArrayByDay(DateTime starttime, DateTime endtime)
+        {
+            var list = new List<DateTime>();
+            for (DateTime dt = starttime; dt.Date <= endtime.Date; dt = dt.AddDays(1))
+            {
+                list.Add(dt.Date);
+            }
+            return list;
+        }
+        public static List<DateTime> GetArrayByMonth(DateTime starttime, DateTime endtime)
+        {
+            var list = new List<DateTime>();
+            for (DateTime dt = starttime; dt.Date <= endtime.Date; dt = dt.AddMonths(1))
+            {
+                list.Add(GetStartDateOfMonth(dt.Date));
+            }
+            return list;
+        }
+        public static List<DateTime> GetArrayByYear(DateTime starttime, DateTime endtime)
+        {
+            var list = new List<DateTime>();
+            for (DateTime dt = starttime; dt.Date <= endtime.Date; dt = dt.AddYears(1))
+            {
+                list.Add(GetStartDateOfYear(dt.Date));
+            }
+            return list;
+        }
     }
 }