From b2109a5a157aa532301b9a3c30f40a08eedc554b Mon Sep 17 00:00:00 2001
From: group04_tangzhuoyang <tzy15826819885@163.com>
Date: Thu, 2 Apr 2026 14:51:44 +0800
Subject: [PATCH] Add math.py script for palindrome number detection

- Add is_palindrome() function to check if a number is palindrome
- Include main() function with test cases and interactive mode
- Add comprehensive test cases covering various scenarios
---
 math.py | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 math.py

diff --git a/math.py b/math.py
new file mode 100644
index 0000000..262693d
--- /dev/null
+++ b/math.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+"""
+math.py - 判断回文数的脚本
+"""
+
+def is_palindrome(n: int) -> bool:
+    """
+    判断一个整数是否是回文数。
+
+    参数:
+        n: 要检查的整数
+
+    返回:
+        如果是回文数返回True，否则返回False
+    """
+    if n < 0:
+        return False
+    if n == 0:
+        return True
+
+    # 转换为字符串并检查是否等于反转后的字符串
+    str_n = str(n)
+    return str_n == str_n[::-1]
+
+
+def main():
+    """测试函数"""
+    test_cases = [
+        121,      # True
+        12321,    # True
+        123,      # False
+        1221,     # True
+        123321,   # True
+        1234321,  # True
+        12344321, # True
+        10,       # False
+        0,        # True
+        -121,     # False
+        123456,   # False
+        123454321,# True
+    ]
+
+    print("测试回文数判断函数:")
+    print("-" * 40)
+    for num in test_cases:
+        result = is_palindrome(num)
+        print(f"{num:12} -> {'是回文数' if result else '不是回文数'}")
+
+    # 额外测试：用户输入
+    print("\n" + "=" * 40)
+    print("手动测试模式 (输入 'exit' 退出)")
+    print("=" * 40)
+
+    while True:
+        user_input = input("请输入一个整数: ").strip()
+        if user_input.lower() == 'exit':
+            print("程序结束。")
+            break
+
+        try:
+            num = int(user_input)
+            if is_palindrome(num):
+                print(f"{num} 是回文数。")
+            else:
+                print(f"{num} 不是回文数。")
+        except ValueError:
+            print("错误：请输入有效的整数。")
+
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file