大约有 39,000 项符合查询结果（耗时：0.0795秒） [XML]
How to search DOM elements using XPath or CSS selectors in Chrome Developer Tools?
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265
You can use $x in the Chrome javascript console. No extensions needed.
ex: $x("//img")
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How to make PyCharm always show line numbers
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345
Version 2.6 and above:
PyCharm (far left menu) -> Preferences... -> Editor (bottom left se...
How to revert a folder to a particular commit by creating a patch
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156
You can use git checkout to update your repository to a specific state.
git checkout e095 -- s...
Build.scala, % and %% symbols meaning
... |
edited Dec 20 '15 at 16:12
Jonik
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Different results with Java's digest versus external utilities
...ptography;
class Test
{
static void Main()
{
using (var md5 = MD5.Create())
{
string path = "c:/Windows/System32/Calc.exe";
var bytes = md5.ComputeHash(File.ReadAllBytes(path));
Console.WriteLine(BitConverter.ToString(bytes));
}
...
How to save as a new file and keep working on the original one in Vim?
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529
Use the :w command with a filename:
:w other_filename
...
Combining two lists and removing duplicates, without removing duplicates in original list
...of determining which elements they are, like this:
first_list = [1, 2, 2, 5]
second_list = [2, 5, 7, 9]
in_first = set(first_list)
in_second = set(second_list)
in_second_but_not_in_first = in_second - in_first
result = first_list + list(in_second_but_not_in_first)
print(result) # Prints [1, 2, ...
Why were pandas merges in python faster than data.table merges in R in 2012?
...s of which
of which 600,000 are unique is now reduced from 16s to 0.5s, for example.
also in that release was :
character columns are now allowed in keys and are preferred to
factor. data.table() and setkey() no longer coerce character to
factor. Factors are still supported. Implements FR...
Intellij IDEA, format all code in a project
...fymoduffymo
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