From cfc1297c190f2ce53f85f049ec16dd256e0cb8cb Mon Sep 17 00:00:00 2001
From: Chuanyu Xue <chuanyu.xue@uconn.edu>
Date: Mon, 24 Jan 2022 19:59:22 -0500
Subject: [PATCH] fix mistakes

---
 2. Python 数据结构.ipynb     | 4 ++--
 3. Python 面向对象编程.ipynb | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/2. Python 数据结构.ipynb b/2. Python 数据结构.ipynb
index d704f35..3e5a124 100644
--- a/2. Python 数据结构.ipynb	
+++ b/2. Python 数据结构.ipynb	
@@ -98,7 +98,7 @@
    "source": [
     "我们通过 `[ ]` 关键字查找序列中某个位置的元素。\n",
     "\n",
-    "例如 `l[0]` 可以获取序列中首个元素，`l[2]` 可以获取序列中第 2 个元素。同时它还支持倒序查找，例如 `l[-1]` 表示倒数第一个元素（末尾的元素）。"
+    "例如 `l[0]` 可以获取序列中首个元素，`l[1]` 可以获取序列中第 2 个元素。同时它还支持倒序查找，例如 `l[-1]` 表示倒数第一个元素（末尾的元素）。"
    ]
   },
   {
@@ -122,7 +122,7 @@
     "## 查找 首个 元素\n",
     "print(l[0])\n",
     "## 查找第 2 个元素\n",
-    "print(l[2])\n",
+    "print(l[1])\n",
     "## 查找第 最后 元素\n",
     "print(l[-1])\n",
     "## 查找倒数第 2 个元素\n",
diff --git a/3. Python 面向对象编程.ipynb b/3. Python 面向对象编程.ipynb
index 6172d9b..70b8a8b 100644
--- a/3. Python 面向对象编程.ipynb	
+++ b/3. Python 面向对象编程.ipynb	
@@ -488,7 +488,7 @@
     "        if course_name == 'language':\n",
     "            self.language_score = score\n",
     "        ## 如果输入的 course_name 不是 math 或者 language，则输出错误信息\n",
-    "            print(course_name, \" course is still not in current system\")\n",
+    "        print(course_name, \" course is still not in current system\")\n",
     "    \n",
     "    def print_name(self,):\n",
     "        print(self.name)\n",