大约有 1,800 项符合查询结果(耗时:0.0204秒) [XML]
Get the Row(s) which have the max count in groups using groupby
...ues.
This would filter out all the rows with max value in the group.
In [365]: import pandas as pd
In [366]: df = pd.DataFrame({
'sp' : ['MM1', 'MM1', 'MM1', 'MM2', 'MM2', 'MM2', 'MM4', 'MM4','MM4'],
'mt' : ['S1', 'S1', 'S3', 'S3', 'S4', 'S4', 'S2', 'S2', 'S2'],
'val' : ['a', 'n', 'cb', 'mk', 'bg...
What is the difference between a User Control Library and a Custom Control Library?
...when implemented the correct way. Unfortunately my WPF reference is at the office currently so I can't check the implementation details.
– Mikko Rantanen
Apr 30 '09 at 16:37
...
Excel Date to String conversion
... how to set formats: see Guidelines for date and time formats on this page office.microsoft.com/en-us/excel-help/…
– codea
Sep 9 '13 at 21:07
...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... 将小包组装成大包再交给内核协议栈等。可以使用ethtool工具来开启相应特性。
网卡驱动调优
默认的ixgbe配置是在是在高吞吐和低延时之际的权衡, 可以更改相应的硬编码的配置或者ethtool进行更改,对于本文我们的场景来说...
npm not working - “read ECONNRESET”
...
Remove your proxy settings at home and switch on at Office networks, This may be irritating, But It worked for me:
npm config set proxy http://xxx.xxx.xxx.4:8080
npm config set https-proxy http://xxx.xxx.xxx.4:8080
and
npm config rm proxy
npm config rm https-proxy
...
Accessing @attribute from SimpleXML
...et the correct output, but when I follow the docs and var_dump $xml->OFFICE->{'@attributes'} , I get an empty object, despite the fact that the first var_dump clearly shows that there are attributes to output.
...
Python script to copy text to clipboard [duplicate]
...
.copy seems to be the offical one. github.com/asweigart/pyperclip
– fnkr
Oct 17 '14 at 19:50
...
What is the difference between Spring's GA, RC and M2 releases?
...
365
GA = General availability (a release); should be very stable and feature complete
RC = Releas...
When do I use the PHP constant “PHP_EOL”?
...
365
Yes, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible w...
How do I set the UI language in vim?
...I want English , but since my OS is set up in German (the standard at our office), I guess vim is actually trying to be helpfull.
...
