[原型链](%E5%8E%9F%E5%9E%8B%E9%93%BE.md) [作用域](%E4%BD%9C%E7%94%A8%E5%9F%9F.md) [事件绑定](%E4%BA%8B%E4%BB%B6%E7%BB%91%E5%AE%9A.md) [dom](dom.md) [bom](bom.md)