大约有 31,840 项符合查询结果（耗时：0.0449秒） [XML]
What's your most controversial programming opinion?
...gs that don't warrant them. Just because something is new, or because someone respected has an opinion, doesn't mean it fits all :)
EDIT:
Just to clarify - I don't think people should ignore best practices, valued opinions etc. Just that people shouldn't just blindly jump on something without thin...
What is the correct way to represent null XML elements?
...nding complex type.
A clarification:
If you have a book xml element and one of the child elements is book:series you have several options when filling it out:
Removing the element entirely - This can be done when you wish to indicate that series does not apply to this book or that book is not p...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...list but inner lists are references. For the inner lists, would the copied one influenced by original one? I create a list of lists like list_=[[1,2],[3,4]] newlist = list_.copy() list_[0]=[7,8] and the newlist remains the same, so does the inner list are references?
– Alston
...
How can I check if a program exists from a Bash script?
...t or even hook into the package manager.
So, don't use which. Instead use one of these:
$ command -v foo >/dev/null 2>&1 || { echo >&2 "I require foo but it's not installed. Aborting."; exit 1; }
$ type foo >/dev/null 2>&1 || { echo >&2 "I require foo but it's not...
How can I clear or empty a StringBuilder? [duplicate]
...
Two ways that work:
Use stringBuilderObj.setLength(0).
Allocate a new one with new StringBuilder() instead of clearing the buffer.
share
|
improve this answer
|
follow
...
How to prevent the activity from loading twice on pressing the button
...hread (i.e. UI Thread or Simply use async class). Once your processing is done hide that dialog. It is the best solution in my knowledge and I have used it several times...:)
– Awais Tariq
Nov 10 '11 at 12:51
...
Get current AUTO_INCREMENT value for any table
...
It's not the best idea to add one to it and expect, it will be the ID of next row. In the mean time another transaction could insert a new row and you would use the wrong ID right?
– agim
Apr 4 '13 at 21:11
...
What is a method group in C#?
...
A method group is the name for a set of methods (that might be just one) - i.e. in theory the ToString method may have multiple overloads (plus any extension methods): ToString(), ToString(string format), etc - hence ToString by itself is a "method group".
It can usually convert a method gro...
How to determine whether a given Linux is 32 bit or 64 bit?
...various values: see "What do the flags in /proc/cpuinfo mean?"
Among them, one is named lm: Long Mode (x86-64: amd64, also known as Intel 64, i.e. 64-bit capable)
lm ==> 64-bit processor
Or using lshw (as mentioned below by Rolf of Saxony), without sudo (just for grepping the cpu width):
lshw...
Apache Spark: The number of cores vs. the number of executors
...apacity
of the NodeManagers. The application master will take up a core on one
of the nodes, meaning that there won’t be room for a 15-core executor
on that node. 15 cores per executor can lead to bad HDFS I/O
throughput.
A better option would be to use --num-executors 17
--executor-cores 5 --exec...