 | nauynahV2EX member #208413, joined on 2016-12-30 11:00:19 +08:00 |
nauynah's recent replies
Apr 8, 2018 Replied to a topic by WhyAreYouSoSad 奇思妙想 站在上帝视角，你会和“你”成为朋友吗？ |
会
之前 11dota 天梯单排的时候，碰到**队友，就会想要是还有 4 个自己肯定比他们强，本体玩辅助，其余 1234
之前 11dota 天梯单排的时候，碰到**队友，就会想要是还有 4 个自己肯定比他们强，本体玩辅助，其余 1234
Jan 22, 2018 Replied to a topic by holonunu Nintendo Switch Nintendo Switch 购买途径？ |
我前几天在香港买的，主机+奥德赛一共 2300rmb，在沙田站新城市广场苏宁
Sep 11, 2017 Replied to a topic by MrgHOST Python Python 相关问题 |
@acheapskate 是的，我把字符串长度看成 10 了
Sep 11, 2017 Replied to a topic by MrgHOST Python Python 相关问题 |
>>> [str[i: i+2] for i in range(0, 10, 2)]
Sep 4, 2017 Replied to a topic by hiboshi 问与答 Python 能实现这一的数据结构么 |
@hiboshi 三维也是一样的
```
tmp = dict()
tmp.setdefault(key1, {})
tmp[key1].setdefault(key2, {})
tmp[key1][key2][key3] = value
```
```
tmp = dict()
tmp.setdefault(key1, {})
tmp[key1].setdefault(key2, {})
tmp[key1][key2][key3] = value
```
Sep 4, 2017 Replied to a topic by hiboshi 问与答 Python 能实现这一的数据结构么 |
可以。
```Python
aa = [
{'id': 1, 't_id': 100, 'txt': 'aaa'},
{'id': 1, 't_id': 110, 'txt': 'bbb'},
{'id': 1, 't_id': 120, 'txt': 'ccc'},
{'id': 2, 't_id': 130, 'txt': 'ddd'},
{'id': 2, 't_id': 140, 'txt': 'eee'},
{'id': 3, 't_id': 150, 'txt': 'fff'},
]
# 1、dict.setdefault 方法
tmp = dict()
for a in aa:
tmp.setdefault(a['id'], {})
tmp[a['id']][a['t_id']] = a['txt']
# 2、collections 模块 defaultdict
from collections import defaultdict
tmp = defaultdict(dict)
for a in aa:
tmp[a['id']][a['t_id']] = a['txt']
```
```Python
aa = [
{'id': 1, 't_id': 100, 'txt': 'aaa'},
{'id': 1, 't_id': 110, 'txt': 'bbb'},
{'id': 1, 't_id': 120, 'txt': 'ccc'},
{'id': 2, 't_id': 130, 'txt': 'ddd'},
{'id': 2, 't_id': 140, 'txt': 'eee'},
{'id': 3, 't_id': 150, 'txt': 'fff'},
]
# 1、dict.setdefault 方法
tmp = dict()
for a in aa:
tmp.setdefault(a['id'], {})
tmp[a['id']][a['t_id']] = a['txt']
# 2、collections 模块 defaultdict
from collections import defaultdict
tmp = defaultdict(dict)
for a in aa:
tmp[a['id']][a['t_id']] = a['txt']
```
Aug 25, 2017 Replied to a topic by RosyGame 程序员 暴风影音“杀程序员祭天”？这样营销真的好吗？令人感到不适 |
想知道暴风还要程序员吗，能祭天的那种
Aug 7, 2017 Replied to a topic by ZCPgyer 推广 [周一福利] 用最优雅的方式追踪 Bug：体验 Tracup， 30 张京东卡等你来拿 |
组成分母
Select Language