大约有 41,000 项符合查询结果（耗时：0.0670秒） [XML]
How to redirect output with subprocess in Python?
...dows then drop shlex.split(), drop shell=True, drop >file, drop open(), etc and use stdout=PIPE, Timer(1, proc.terminate).start(); output = proc.communicate()[0] instead. Here's complete example. More solutions: Stop reading process output in Python without hang? Note: there is no requirement in ...
Changing image size in Markdown
... to resize the image. Do not forget the space before the =.
You can skip the HEIGHT
share
|
improve this answer
|
...
Convert JSON to Map
...Map<String,Object> result =
new ObjectMapper().readValue(JSON_SOURCE, HashMap.class);
(where JSON_SOURCE is a File, input stream, reader, or json content String)
share
|
improve this ...
Perform an action in every sub-directory using Bash
... command, this is more concise:
for D in *; do [ -d "${D}" ] && my_command; done
Or an even more concise version (thanks @enzotib). Note that in this version each value of D will have a trailing slash:
for D in */; do my_command; done
...
Is there a C# type for representing an integer Range?
... }
/// <summary>
/// Split this out to allow custom throw etc
/// </summary>
private static int Parse(string value)
{
int output;
var ok = int.TryParse(value, out output);
if (!ok) throw new FormatException($"Failed to parse '{value}' as an ...
getting the screen density programmatically in android?
... screen size. So the metrics.densityDpi property will be one of the DENSITY_xxx constants (120, 160, 213, 240, 320, 480 or 640 dpi).
If you need the actual lcd pixel density (perhaps for an OpenGL app) you can get it from the metrics.xdpi and metrics.ydpi properties for horizontal and vertical dens...
Scala Doubles, and Precision
...igDecimal:
BigDecimal(1.23456789).setScale(2, BigDecimal.RoundingMode.HALF_UP).toDouble
There are a number of other rounding modes, which unfortunately aren't very well documented at present (although their Java equivalents are).
...
How can I delete multiple lines in vi?
...You can delete multiple(range) lines if you know the line numbers:
:[start_line_no],[end_line_no]d
Note: d stands for delete
where,
start_line_no is the beginning line no you want to delete and
end_line_no is the ending line no you want to delete.
The lines between the start and end, includin...
kill -3 to get java thread dump
...'s stdout is placed. If you have a Tomcat server, this will be the catalina_(date).out file.
share
|
improve this answer
|
follow
|
...
How can I get list of values from dict?
...
You can use * operator to unpack dict_values:
>>> d = {1: "a", 2: "b"}
>>> [*d.values()]
['a', 'b']
or list object
>>> d = {1: "a", 2: "b"}
>>> list(d.values())
['a', 'b']
...