From 46ecb117a5b706cbb6cca9e4e613ab0074a0618f Mon Sep 17 00:00:00 2001
From: hhhhhxm <93307037+hhhhhxm@users.noreply.github.com>
Date: Wed, 31 May 2023 09:54:23 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=88=A4=E6=96=AD=E6=9F=90?=
 =?UTF-8?q?=E4=B8=AA=E6=97=A5=E6=9C=9F=E6=98=AF=E4=B8=80=E5=B9=B4=E5=BD=93?=
 =?UTF-8?q?=E4=B8=AD=E7=9A=84=E7=AC=AC=E5=87=A0=E5=A4=A9=E7=9A=84=E6=96=B9?=
 =?UTF-8?q?=E6=B3=95=20(#103)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* 增加判断某个日期是一年当中的第几天的方法

* 修改下函数名字

---------

Co-authored-by: huangxingming <huangxingming@kezaihui.com>
---
 datetime/datetime.go      |  7 +++++++
 datetime/datetime_test.go | 15 +++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/datetime/datetime.go b/datetime/datetime.go
index 50101ee..2636c4b 100644
--- a/datetime/datetime.go
+++ b/datetime/datetime.go
@@ -237,3 +237,10 @@ func BetweenSeconds(t1 time.Time, t2 time.Time) int64 {
 	index := t2.Unix() - t1.Unix()
 	return index
 }
+
+func DayOfYear(t1 time.Time) int {
+	y, m, d := t1.Date()
+	firstDay := time.Date(y, 1, 1, 0, 0, 0, 0, t1.Location())
+	nowDate := time.Date(y, m, d, 0, 0, 0, 0, t1.Location())
+	return int(nowDate.Sub(firstDay).Hours() / 24)
+}
diff --git a/datetime/datetime_test.go b/datetime/datetime_test.go
index 4314564..d92fe19 100644
--- a/datetime/datetime_test.go
+++ b/datetime/datetime_test.go
@@ -271,3 +271,18 @@ func TestIsLeapYear(t *testing.T) {
 	assert.Equal(true, result1)
 	assert.Equal(false, result2)
 }
+
+func TestDayOfYear(t *testing.T) {
+	assert := internal.NewAssert(t, "TestDayOfYear")
+	date := time.Date(2023, 02, 01, 1, 1, 1, 0, time.Local)
+	result := DayOfYear(date)
+	assert.Equal(31, result)
+
+	date1 := time.Date(2023, 01, 02, 1, 1, 1, 0, time.Local)
+	result1 := DayOfYear(date1)
+	assert.Equal(1, result1)
+
+	date3 := time.Date(2023, 01, 01, 1, 1, 1, 0, time.Local)
+	result2 := DayOfYear(date3)
+	assert.Equal(0, result2)
+}