anything can be anywhere and why is that payload stuffed into the constructor?! why in the world do you want to bundle instantiation with payload, or, if it’s just oneshot work then why not call that payload directly without building an inheritance hell

@pi 学了一学期，最想问的是：class 里这么一大堆东西，真的有必要吗

@icebear @pi 子类型，时代走过的一段弯路……