level 1
热心网友来了
楼主
6-设计模式-背诵远远不够_哔哩哔哩_bilibili
来自：www.bilibili.com/video/BV1EF4m1w7iS/?p=6&vd_source=981ca044ec8b8f3cbb47a70b26b66f84&share_medium=web&share_source=baidu&bbid=F6B830F9-26E2-D307-68F5-6F57C96CF3C584900infoc&ts=1714108376388