摘要：根据参数类型，执行 装饰器指定类型的方法 from functools import singledispatch @singledispatch def func(arg): print(arg, ', 主函数') @func.register(int) def _(arg: int): prin 阅读全文

摘要：直接上代码 from enum import Enum, unique @unique class DAY(Enum): """ name和value都不可重复 """ MON: int = 1 TUE: int = 2 WED: int = 3 THU: int = 4 FRI: int = 5 阅读全文

摘要：// scroll-load-more.js export default function(el, binding) { const SELECT_DOM = el.querySelector(binding.value.name) SELECT_DOM.addEventListener('scr 阅读全文

摘要：# models.py from django.db.models.signals import pre_save, pre_delete from django.dispatch import receiver from django.db import models class Book(mod 阅读全文