大约有 45,000 项符合查询结果（耗时：0.0710秒） [XML]
Which is better in python, del or delattr?
...
272
The first is more efficient than the second. del foo.bar compiles to two bytecode instruction...
How to format a floating number to fixed width in Python
...
525
for x in numbers:
print "{:10.4f}".format(x)
prints
23.2300
0.1233
1.0000
...
In Java, what is the best way to determine the size of an object?
...
26 Answers
26
Active
...
Efficiently test if a port is open on Linux?
...>&6
cat <&6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, to test for listening on a local server in a script:
exec 6<>/dev/tcp/127...
Loop through each row of a range in Excel
...
Rachel Hettinger
6,18922 gold badges1818 silver badges2727 bronze badges
answered Sep 23 '09 at 0:19
MikeMike
...
{version} wildcard in MVC4 Bundle
...
|
edited Oct 23 '16 at 7:48
Tomas Kubes
18.7k1414 gold badges8585 silver badges122122 bronze badges
...
How well is Unicode supported in C++11?
...
267
How well does the C++ standard library support unicode?
Terribly.
A quick scan through t...
git mv and only change case of directory
...sh pop after. Continuing: To get around this, do the following:
mv foo foo2
git add -A
git commit -m "renaming"
mv foo2 FOO
git add -A
git commit --amend -m "renamed foo to FOO"
That's the drawn out way of changing the working directory, committing and then collapsing the 2 commits. You can just ...
Insert image after each list item
...
jimyijimyi
28.2k33 gold badges3434 silver badges3434 bronze badges
...