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窝窝与众美联合并 新公司命名“众美窝窝” - 资讯 - 清泛网 - 专注C/C++及内核技术
...体系。窝窝属于B2C企业，而众美联则是生活服务领域的B2B企业，两者合并，属行业首例，具有标杆意义。本次二者的合并，有三大看点：
看点一 产业链纵向融合 创造新业态
“互联网+”计划为电子商务深入传统行业，改造产...
Split column at delimiter in data frame [duplicate]
... answered Dec 5 '13 at 16:12
A5C1D2H2I1M1N2O1R2T1A5C1D2H2I1M1N2O1R2T1
170k2424 gold badges348348 silver badges432432 bronze badges
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How to unstash only certain files?
...tashes
git stash list
↓
stash@{0}: WIP on Produktkonfigurator: 132c06a5 Cursor bei glyphicon plus und close zu zeigende Hand ändern
stash@{1}: WIP on Produktkonfigurator: 132c06a5 Cursor bei glyphicon plus und close zu zeigende Hand ändern
stash@{2}: WIP on master: 7e450c81 Merge branch 'Off...
Why prefer two's complement over sign-and-magnitude for signed numbers?
...just make the most significant term negative.
Taking an 8-bit value a7 a6 a5 a4 a3 a2 a1 a0
The usual unsigned binary interpretation is:
27*a7 + 26*a6 + 25*a5 + 24*a4 + 23*a3 + 22*a2 + 21*a1 + 20*a0
11111111 = 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1 = 255
The two's complement interpretation is:
-27*a7...
Count cells that contain any text
...ple:
Function in A7
=COUNTA(A1:A6)
Range:
A1 a
A2 b
A3 banana
A4 42
A5
A6
A7 4 -> result
Google spreadsheet function list contains a list of all available functions for future reference https://support.google.com/drive/table/25273?hl=en.
...
How to search a Git repository by commit message?
...lly make a new branch or tag of it for reference)
git checkout 77b1f718d19e5cf46e2fab8405a9a0859c9c2889
# alternative, using reflog (see git-ready link provided)
# git checkout HEAD@{10}
git checkout -b build_0051 # make a new branch with the build_0051 as the tip
...
TypeError: got multiple values for argument
... Traceback (most recent call last)
<ipython-input-5-17e0c66a5a95> in <module>
11 super(B, self).__init__(a=a, b=b, *args, **kwargs)
12
---> 13 B(3, c=2)
<ipython-input-5-17e0c66a5a95> in __init__(self, *args, **kwargs)
9 a = 1
...
What is the iBeacon Bluetooth Profile
...e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 96 e0 00 00 00 00 c5 52 ab 8d 38 a5
This packet can be broken down as follows:
d6 be 89 8e # Access address for advertising data (this is always the same fixed value)
40 # Advertising Channel PDU Header byte 0. Contains: (type = 0), (tx add = 1), (rx add ...
App Inventor 2 中文网 · 项目指南
... 85% .t_desc { color: #5e91a1; height: 60px; } App Inventor 2 入...
Traverse a list in reverse order in Python
... recreating a new list, you can do by indexing:
>>> foo = ['1a','2b','3c','4d']
>>> for i in range(len(foo)):
... print foo[-(i+1)]
...
4d
3c
2b
1a
>>>
OR
>>> length = len(foo)
>>> for i in range(length):
... print foo[length-i-1]
...
4d
3c
2b...