在Python编程中，动态类型系统允许我们在运行时动态地定义和操作变量。Python提供了两个强大的内置函数eval和exec，它们允许我们在程序运行时动态地执行Python代码。这两个函数虽然功能强大，但也需要谨慎使用，以避免潜在的安全风险。本文将详细介绍eval和exec ...

Google Colaboratory, or "Colab" as most people call it, is a cloud-based Jupyter notebook environment. It runs in your web browser (you can even run it on your favorite Chromebook) and lets anyone ...