普通文字有什么效果呢
大标题
- 带序列的呢
这是要被折叠的内容
中标题
from typing import Iterator
# This is an example
class Math:
@staticmethod
def fib(n: int) -> Iterator[int]:
"""Fibonacci series up to n."""
a, b = 0, 1
while a < n:
yield a
a, b = b, a + b
result = sum(Math.fib(42))
print(f"The answer is {result}")