Add divide function to test.py

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

test.py

@@ -4,7 +4,23 @@ def multiply(a, b):
     """
     return a * b
 
+def divide(a, b):
+    """
+    计算两个数字相除的结果并返回结果
+    处理除零错误
+    """
+    if b == 0:
+        raise ValueError("除数不能为零")
+    return a / b
+
 if __name__ == "__main__":
     # 测试函数
     result = multiply(3, 4)
-    print(f"3 * 4 = {result}")
+    print(f"3 * 4 = {result}")
+
+    # 测试除法函数
+    try:
+        result = divide(10, 2)
+        print(f"10 / 2 = {result}")
+    except ValueError as e:
+        print(f"除法错误: {e}")