From dbec1f22370eb99e8a3a8eb1e0bc2b8e3015377f Mon Sep 17 00:00:00 2001
From: 2509165028 <2509165028@student.edu.cn>
Date: Tue, 21 Apr 2026 11:34:07 +0800
Subject: [PATCH] 3-2-1

---
 260421_2509165028.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 260421_2509165028.py

diff --git a/260421_2509165028.py b/260421_2509165028.py
new file mode 100644
index 0000000..ece70c4
--- /dev/null
+++ b/260421_2509165028.py
@@ -0,0 +1,18 @@
+import numpy as np
+# 第一部分题目1
+s="Hello"
+print("ASCII码分别为：",[ord(o) for o in s])
+print(f"ASCII码65对应的字符是：{chr(65)}")
+# 第二部分题目3
+A=np.array([3,4])
+B=np.array([1,2])
+print(f"计算A+B的结果为：{A+B}")
+print(f"计算A*2的结果为：{A*2}")
+length=np.linalg.norm(A)
+print(f"向量A的长度为：{length}")
+# 第二部分题目4
+A=np.array([1,2,3])
+B=np.array([4,5,6])
+dot=np.dot(A,B)
+print(f"A·B点积为：{dot}")
+print(f"相似度 = {cosine_similarity(A, B):.3f}")