列表推导式（List comprehensions）也叫列表解析，灵感取自函数式编程语言 Haskell。Ta 是一个非常有用和灵活的工具，可以用来动态的创建列表(List comprehensions, also known as list parsing, is inspired by functional programming language Haskell. Ta is a very useful and flexible tool that can be used to creat