Open utterances-bot opened 2 years ago
https://magic.iswbm.com/c01/c01_08.html
But this approach is slower than a+b+c
build_app
[i for ls in [a,b,c] for i in ls] 更喜欢这个
1.8 连接多个列表最极客的方式 — Python黑魔法手册 1.0.0 documentation
https://magic.iswbm.com/c01/c01_08.html