大约有 42,000 项符合查询结果（耗时：0.0337秒） [XML]
Is it possible to have multiple statements in a python lambda expression?
...s a version of sort that creates a new list, rather than sorting in-place, and can be chained. Note that this is probably what you should be using - it's bad practice for your map to have side effects on the original list.
Q. How should I get the second lowest item from each list in a sequence of ...
Javascript : natural sort of alphanumerical strings
I'm looking for the easiest way to sort an array that consists of numbers and text, and a combination of these.
7 Answers
...
How do I set a variable to the output of a command in Bash?
...
In addition to backticks `command`, command substitution can be done with $(command) or "$(command)", which I find easier to read, and allows for nesting.
OUTPUT=$(ls -1)
echo "${OUTPUT}"
MULTILINE=$(ls \
-1)
echo "${MULTILINE}"
Quoting (") does ma...
How to best position Swing GUIs?
...creen looks so.. "splash-screen'ish". I keep waiting for them to disappear and the real GUI to appear!
Since Java 1.5 we've had access to Window.setLocationByPlatform(boolean). which..
Sets whether this Window should appear at the default location for the native windowing system or at the curre...
How to unmount a busy device
...s daily. I already have code to recognize shared drives (from a SQL table) and mount them in a special directory where all users can access them.
...
Java 8 Streams - collect vs reduce
...t argument to the operator is the return value of the previous application and the second argument is the current stream element.
collect is an aggregation operation where a "collection" is created and each element is "added" to that collection. Collections in different parts of the stream are then...
OS X10.9 环境下部署 QT5.3.1 常见的编译问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
OS X10.9 环境下部署 QT5.3.1 常见的编译问题出于本身对UNIX系统的好奇，以及身边一群对 Swift 语言各种推崇的苹果教徒的影响，这几天折腾起 MAC OS X来，体验下这个被无数开发者...
出于本身对UNIX系统的好奇，以及身边一群对 Swift ...
Merge PDF files
...splitting documents page by page,
* merging documents page by page,
(and much more)
Here's a sample program that works with both versions.
#!/usr/bin/env python
import sys
try:
from PyPDF2 import PdfFileReader, PdfFileWriter
except ImportError:
from pyPdf import PdfFileReader, PdfFil...
MySQL CONCAT returns NULL if any field contain NULL
...
Sorry neeraj i missed the '_' between Concat and WS Please try again with CONCAT_WS().I have updated the answer please check,
– Gurmeet
Apr 1 '13 at 10:14
...
Assign output of a program to a variable using a MS batch file
...et VAR=%%i
Note that the first % in %%i is used to escape the % after it and is needed when using the above code in a batch file rather than on the command line. Imagine, your test.bat has something like:
for /f %%i in ('c:\cygwin64\bin\date.exe +"%%Y%%m%%d%%H%%M%%S"') do set datetime=%%i
echo %d...