From 9814544deb20b6165c6e60292c5c675fb140c65c Mon Sep 17 00:00:00 2001
From: JackH <1620514129@qq.com>
Date: Sun, 29 Jun 2025 21:23:03 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E6=8F=90=E4=BA=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 day1/README.md   |  3 ++-
 day1/str.py      |  2 +-
 day2/README.md   |  4 ++++
 day2/条件循环.py | 35 +++++++++++++++++++++++++++++++++++
 4 files changed, 42 insertions(+), 2 deletions(-)
 create mode 100644 day2/README.md
 create mode 100644 day2/条件循环.py

diff --git a/day1/README.md b/day1/README.md
index 4dd30f0..ee9fad9 100644
--- a/day1/README.md
+++ b/day1/README.md
@@ -9,4 +9,5 @@
 ## 注释
 ### #单行注释（Ctrl+/）
 ### ‘’‘多行注释
-## != 不等于
\ No newline at end of file
+## 运算符
+### != 不等于
\ No newline at end of file
diff --git a/day1/str.py b/day1/str.py
index ac00453..5688aa0 100644
--- a/day1/str.py
+++ b/day1/str.py
@@ -1,3 +1,3 @@
 a = 'sb114514'
 # print(a[:2].isalpha())
-print(a[7:8]+a[6:7]+a[5:6]+a[4:5]+a[3:4]+a[2:3]+a[1:2]+a[0:1])
\ No newline at end of file
+print(a[7]+a[6]+a[5]+a[4]+a[3]+a[2]+a[1]+a[0])
\ No newline at end of file
diff --git a/day2/README.md b/day2/README.md
new file mode 100644
index 0000000..a9a28d0
--- /dev/null
+++ b/day2/README.md
@@ -0,0 +1,4 @@
+## 简并
+### 'a/=2'   ==   'a=a/2'
+## 切片
+### x[a:b:c]中c代表距 默认是1
\ No newline at end of file
diff --git a/day2/条件循环.py b/day2/条件循环.py
new file mode 100644
index 0000000..c587395
--- /dev/null
+++ b/day2/条件循环.py
@@ -0,0 +1,35 @@
+"""a = input("数：")
+num = int(a)
+if num % 2 == 0:
+    print(num * 2)
+else:
+    print(num + 1)
+
+while num >= 2:
+    num /= 2
+print(num)
+
+sb = range(114,514)
+for i in sb :
+    print(i)"""
+
+"""
+a =input("")
+b= ''
+for i in a:
+    b = i + b#从右边倒着加字符
+print(b)
+"""
+str = input("")
+length = len(str)
+num = 0
+shot = ""
+for i in range(0, length):
+    num = length - i - 1
+    shot += str[num]
+print(shot)
+# for i in 0,3 为什么i会输出1和3
+"""
+str = '123'
+print(str[3])为什么会超范围
+"""