Python syntax brain games: challenge your programming skills

python is a powerful programming language with simple and elegant syntax. However, mastering its syntax details and pitfalls is an important part of programming proficiency. Python Grammar Puzzle is designed to test your programming skills through a series of fascinating puzzles, allowing you to learn while having fun.

1. Puzzle: Return to 0

Write a Python function that receives a positive integer n and returns a list containing all integers decreasing from n to 0.

• Demo code:

  def countdown(n):
  """
  返回从 n 递减至 0 的所有整数的列表。
  """
  if n == 0:
  return [0]
  return [n] + countdown(n - 1)

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2. Puzzle: Dictionary Unpacking

Write a Python program that extracts key-value pairs from a dictionary and prints them.

• Demo code:

  my_dict = {"姓名": "小明", "年龄": 20}

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for key, value in my_dict.items(): print(f"{key}: {value}")

upper_case = lambda string: string.upper()

5. Puzzle: Exception Handling

In the following Python code, handle the TypeError exception and print a meaningful error message:

try:
# 代码引发 TypeError 异常
except TypeError:
print("输入类型错误！")

6. Puzzle: Generator

Write a Python generator function to generate items of the Fibonacci sequence.

• Demo code:

  def fibonacci():
  """
  生成斐波那契数列的项。
  """
  a, b = 0, 1
  while True:
  yield a
  a, b = b, a + b

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7. Puzzle: Tuple Unpacking

Write a Python program that unpacks a tuple and stores its elements in separate variables.

• Demo code:

  my_tuple = (1, "小明", 20)

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(num, name, age) = my_tuple

**8. 谜题：类方法**

创建一个 Python 类，其中包含一个类方法，用于从字符串中提取整数。

* **示范代码：**
```python
class MyClass:
@claSSMethod
def extract_int(cls, string):
"""
从字符串中提取整数。
"""
return int(string) if string.isdigit() else None

Python syntax brain games are not only fun but also very beneficial. By solving these puzzles, you can gain a deeper understanding of Python syntax, discover its nuances, and improve your overall programming skills. Additionally, these puzzles help you develop good programming habits such as exception handling, code readability, and efficient code writing.

Have fun, challenge yourself, and improve your programming skills with Python syntax puzzles!

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