From a2251eb9a865ef8a72846543fa26c29cac2fab43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=B5=96=E6=AC=A3=E8=8C=B9?=
 <2509165049@student.example.com>
Date: Tue, 21 Apr 2026 11:29:45 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
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---
 Untitled-1.py   |  6 ++++++
 import math.ini | 21 +++++++++++++++++++++
 main.py         | 12 ++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 Untitled-1.py
 create mode 100644 import math.ini
 create mode 100644 main.py

diff --git a/Untitled-1.py b/Untitled-1.py
new file mode 100644
index 0000000..f3ce5d9
--- /dev/null
+++ b/Untitled-1.py
@@ -0,0 +1,6 @@
+text = "Hello"
+print("每个字符的ASCII码：")
+for char in text:
+    print(f"'{char}' 的 ASCII 码：{ord(char)}")
+
+print("\nchr(65) 的结果：", chr(65))
\ No newline at end of file
diff --git a/import math.ini b/import math.ini
new file mode 100644
index 0000000..632f736
--- /dev/null
+++ b/import math.ini	
@@ -0,0 +1,21 @@
+import math
+
+A = [1, 2, 3]
+B = [4, 5, 6]
+
+dot_product = sum(a * b for a, b in zip(A, B))
+print("点积 A · B：", dot_product)
+
+norm_A = math.sqrt(sum(a**2 for a in A))
+norm_B = math.sqrt(sum(b**2 for b in B))
+cos_similarity = dot_product / (norm_A * norm_B)
+print("余弦相似度：", cos_similarity)
+
+A_special = [1, 0]
+B_special = [0, 1]
+dot_special = sum(a * b for a, b in zip(A_special, B_special))
+norm_A_special = math.sqrt(sum(a**2 for a in A_special))
+norm_B_special = math.sqrt(sum(b**2 for b in B_special))
+cos_special = dot_special / (norm_A_special * norm_B_special)
+print("\n特殊情况的余弦相似度：", cos_special)
+print("原因：两个向量相互垂直（正交），点积为 0，方向完全不同，因此余弦相似度为 0")
\ No newline at end of file
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..fd956af
--- /dev/null
+++ b/main.py
@@ -0,0 +1,12 @@
+import math
+A = [3, 4]
+B = [1, 2]
+
+A_plus_B = [a + b for a, b in zip(A, B)]
+print("A + B 的结果：", A_plus_B)
+
+A_scaled = [2 * a for a in A]
+print("2 × A 的结果：", A_scaled)
+
+A_norm = math.sqrt(sum(a**2 for a in A))
+print("A 的长度（模）：", A_norm)
\ No newline at end of file