From eff58fddedef9eddcd55955bd249c9887729b427 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E9=93=B6=E5=86=9B?= <yinjun.chen1@gientech.com>
Date: Tue, 9 Dec 2025 18:16:08 +0800
Subject: [PATCH] no message

---
 pythonProject/数据类型/集合/1.py | 1 +
 pythonProject/数据类型/集合/2.py | 3 +++
 pythonProject/数据类型/集合/3.py | 3 +++
 pythonProject/数据类型/集合/4.py | 3 +++
 pythonProject/数据类型/集合/5.py | 3 +++
 5 files changed, 13 insertions(+)
 create mode 100644 pythonProject/数据类型/集合/3.py
 create mode 100644 pythonProject/数据类型/集合/4.py
 create mode 100644 pythonProject/数据类型/集合/5.py

diff --git a/pythonProject/数据类型/集合/1.py b/pythonProject/数据类型/集合/1.py
index adbd504..535c8a7 100644
--- a/pythonProject/数据类型/集合/1.py
+++ b/pythonProject/数据类型/集合/1.py
@@ -1,3 +1,4 @@
+# 无序，不可重复，可扩展
 # 不能通过索引访问元素
 # 自动去重
 # 元素必须是可哈希的（如 int, str, tuple），不能包含 list、dict、set 等可变类型
diff --git a/pythonProject/数据类型/集合/2.py b/pythonProject/数据类型/集合/2.py
index e69de29..e0f01fa 100644
--- a/pythonProject/数据类型/集合/2.py
+++ b/pythonProject/数据类型/集合/2.py
@@ -0,0 +1,3 @@
+s = {1,2}
+s.add(3) # 添加元素
+print(s)
\ No newline at end of file
diff --git a/pythonProject/数据类型/集合/3.py b/pythonProject/数据类型/集合/3.py
new file mode 100644
index 0000000..96a50c6
--- /dev/null
+++ b/pythonProject/数据类型/集合/3.py
@@ -0,0 +1,3 @@
+s = {1,2,3}
+s.remove(3) # 删除元素 若不存在则报 KeyError
+print(s)
\ No newline at end of file
diff --git a/pythonProject/数据类型/集合/4.py b/pythonProject/数据类型/集合/4.py
new file mode 100644
index 0000000..5594b90
--- /dev/null
+++ b/pythonProject/数据类型/集合/4.py
@@ -0,0 +1,3 @@
+s = {1,2,3}
+s.discard(3) # 删除元素 若不存在也不报错
+print(s)
\ No newline at end of file
diff --git a/pythonProject/数据类型/集合/5.py b/pythonProject/数据类型/集合/5.py
new file mode 100644
index 0000000..de4c22f
--- /dev/null
+++ b/pythonProject/数据类型/集合/5.py
@@ -0,0 +1,3 @@
+s = {1,2,3}
+s.pop() # 随机弹出一个元素
+print(s)
\ No newline at end of file