震惊了！每30秒学会一个Python小技巧

向大家推荐一个将碎片化时间利用到极致的github项目《30-seconds-of-python》

作者实现了List、Math、Object、Utility方面74个小函数，每个学习时间仅需30秒，而且每个实例都给出了思路、实现代码和example，以阶乘为例：

Factorial（Calculates the factorial of a number）

Use recursion. If num is less than or equal to 1, return 1. Otherwise, return the product of num and the factorial of num - 1. Throws an exception if num is a negative or a floating point number.

def factorial(num):
  if not ((num >= 0) and (num % 1 == 0)):
    raise Exception(
      f"Number( {num} ) can't be floating point or negative ")
  return 1 if num == 0 else num * factorial(num - 1)

Examples

factorial(6) # 720

作者还建了一个网站，方便大家查找

https://github.com/30-seconds/30-seconds-of-python

此外，30秒学Python只是作者庞大计划其中一支，还有CSS/PHP/React等方向值得大家去挖掘更多精彩！

30 seconds of Code

30 seconds of CSS

30 seconds of Interviews

30 seconds of Knowledge

30 seconds of React

30 seconds of PHP

项目地址

https://python.30secondsofcode.org

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