Player{name: "Alice", score: 250},
Update many default keybindings to work with other keyboard layouts.，推荐阅读新收录的资料获取更多信息
der([a-z]) = ITE([a-z], ε, ⊥) - the base case, where a character set predicate produces the simplest possible decision tree，这一点在新收录的资料中也有详细论述
（作者为中国工程院院士，本报记者王云娜采访整理）