1. 上下文管理器 上下文管理器用于管理资源，例如文件或数据库连接，确保在使用后进行适当清理。它们是使用 with 语句实现的。 with open("file.txt", "w") as file:file.write("Hello, World!

The digital age has turned web development skills from niche to being the cardinal pillar of the modern, tech-driven economy. Be it an experienced developer or an aspiring tech professional, advanced ...