LSEI的博客

2.1 def valid(text, chars="ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"): result = [] for char in text: if char in chars: result.append(char) # append() : 在List末尾添加元

The Zen of Python, by Tim Peters Beautiful is better than ugly. # 优美胜于丑陋（Python以编写优美的代码为目标） Explicit is better than implicit. # 明了胜于晦涩（优美的代码应当是明了的，命名规范，风格相似） Simple is better than complex. # 简洁胜于复杂