大约有 47,000 项符合查询结果（耗时：0.0425秒） [XML]
Checking if a string can be converted to float in Python
...
Richard Simões
10.6k44 gold badges3737 silver badges4949 bronze badges
answered Apr 9 '09 at 21:55
dbrdbr
...
C# Double - ToString() formatting with two decimal places but no rounding
...
210
I use the following:
double x = Math.Truncate(myDoubleValue * 100) / 100;
For instance:
If t...
Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
... to the process in question using gdb, and run:
p dup2(open("/dev/null", 0), 1)
p dup2(open("/dev/null", 0), 2)
detach
quit
e.g.:
$ tail -f /var/log/lastlog &
[1] 5636
$ ls -l /proc/5636/fd
total 0
lrwx------ 1 myuser myuser 64 Feb 27 07:36 0 -> /dev/pts/0
lrwx------ 1 myuser myuser 6...
Maintaining the final state at end of a CSS3 animation
I'm running an animation on some elements that are set to opacity: 0; in the CSS. The animation class is applied onClick, and, using keyframes, it changes the opacity from 0 to 1 (among other things).
...
C# short/long/int literal format?
...
var d = 1.0d; // double
var d0 = 1.0; // double
var d1 = 1e+3; // double
var d2 = 1e-3; // double
var f = 1.0f; // float
var m = 1.0m; // decimal
var i = 1; // int
var ui = 1U; // uint
var ul = 1UL; // ulong
var l =...
How do I close an open port from the terminal on the Mac?
...
408
Find out the process ID (PID) which is occupying the port number (e.g., 5955) you would like t...
Argmax of numpy array returning non-flat indices
...) on the result of numpy.argmax():
>>> a = numpy.random.random((10, 10))
>>> numpy.unravel_index(a.argmax(), a.shape)
(6, 7)
>>> a[6, 7] == a.max()
True
share
|
improve ...
How to add item to the beginning of List?
...
Use the Insert method:
ti.Insert(0, initialItem);
share
|
improve this answer
|
follow
|
...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
...
106
A simple approach would be to check how many digits are output by Integer.toHexString() and add...
What's the point of g++ -Wreorder?
...
260
Consider:
struct A {
int i;
int j;
A() : j(0), i(j) { }
};
Now i is initialized t...