大约有 13,906 项符合查询结果（耗时：0.0241秒） [XML]
Finding the source code for built-in Python functions?
...can be found in the Objects sub-directory of the Python source trunk. For example, see here for the implementation of the enumerate class or here for the implementation of the list type.
share
|
imp...
Swift equivalent for MIN and MAX macros
In C / Objective-C it is possible to find the minimum and maximum value between two numbers using MIN and MAX macros. Swift doesn't support macros and it seems that there are no equivalents in the language / base library. Should one go with a custom solution, maybe based on generics like this one ?...
How do I install pip on macOS or OS X?
...
If you are behind a proxy, make sure http_proxy and https_proxy are set correctly, then use the '-E' option with sudo: sudo -E easy_install pip
– Neil Schaper
Aug 4 '14 at 20:10
...
Why must wait() always be in synchronized block
...ll must be placed in synchronized block, otherwise an IllegalMonitorStateException is thrown. But what's the reason for making this restriction? I know that wait() releases the monitor, but why do we need to explicitly acquire the monitor by making particular block synchronized and then releas...
chart.js load totally new data
...r chart.js allows one to edit points of the datasets loaded into it, for example:
19 Answers
...
Best way to get InnerXml of an XElement?
What's the best way to get the contents of the mixed body element in the code below? The element might contain either XHTML or text, but I just want its contents in string form. The XmlElement type has the InnerXml property which is exactly what I'm after.
...
Why use softmax as opposed to standard normalization?
In the output layer of a neural network, it is typical to use the softmax function to approximate a probability distribution:
...
Installing Python 3 on RHEL
...on.org):
$ wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tar.xz
Unzip
$ tar xf Python-3.*
$ cd Python-3.*
Prepare compilation
$ ./configure
Build
$ make
Install
$ make install
OR if you don't want to overwrite the python executable (safer, at least on some distros yum needs ...
How to get Vim to highlight non-ascii characters?
... Vim to highlight non-ASCII characters. Is there an available setting, regex search pattern, or plugin to do so?
8 Answers
...
Importing data from a JSON file into R
...p://api.worldbank.org/country?per_page=10&region=OED&lendingtype=LNX&format=json"
json_data <- fromJSON(paste(readLines(json_file), collapse=""))
Update: since version 0.2.1
json_data <- fromJSON(file=json_file)
...