From 4ef697a9d69cb572eb73b6aa16d0703673d1255a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9F=A9=E7=85=9C=E8=BE=89?= <1011224641@qq.com>
Date: Tue, 24 Oct 2023 03:48:04 +0000
Subject: [PATCH] =?UTF-8?q?=E9=9F=A9=E7=85=9C=E8=BE=89=E7=9A=84=E4=BD=9C?=
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Signed-off-by: 韩煜辉 <1011224641@qq.com>
---
 .../20231023.md"                                  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 "33\351\237\251\347\205\234\350\276\211/20231023.md"

diff --git "a/33\351\237\251\347\205\234\350\276\211/20231023.md" "b/33\351\237\251\347\205\234\350\276\211/20231023.md"
new file mode 100644
index 0000000..0b9e9f7
--- /dev/null
+++ "b/33\351\237\251\347\205\234\350\276\211/20231023.md"
@@ -0,0 +1,15 @@
+
+
+# 笔记
+
+
+
+50题练习讲解
+
+substring_index(str,'分界字符',n)  -- 返回从字符串str截取到第n个分界符的字符串，当n大于1从左到右，小于1从右到左
+curdate()  -- 返回当前日期
+curtime()  -- 返回当前时间
+now()  -- 返回当前时间日期
+year(date)  -- 获取指定date的年份
+month(date)  -- 获取指定date的月份
+day(date)  -- 获取指定date的日期
\ No newline at end of file
-- 
Gitee