完成作业3-2-1

2026-04-21 11:29:15 +08:00
parent 37553257a8
commit b936c0ca34
2 changed files with 35 additions and 0 deletions
--- a/2509165016-3.py
+++ b/2509165016-3.py
@@ -0,0 +1,16 @@
+import math
+
+A = [3, 4]
+B = [1, 2]
+
+# 1. A + B
+add_result = [a + b for a, b in zip(A, B)]
+print("A + B =", add_result)
+
+# 2. 2 × A
+scalar_result = [2 * a for a in A]
+print("2 × A =", scalar_result)
+
+# 3. A的长度
+norm = math.sqrt(sum(a**2 for a in A))
+print("A的长度 =", norm)