大约有 13,000 项符合查询结果（耗时：0.0204秒） [XML]
How to create empty text file from a batch file?
...a via: TheSmurf
A 0 byte file the systematic way probably available since Windows 2000:
fsutil file createnew EmptyFile.txt 0
idea via: Emm
A 0 bytes file overwriting readonly files
ATTRIB -R filename.ext>NUL
(CD.>filename.ext)2>NUL
idea via: copyitright
A single newline (2 bytes: ...
Is there a way to access the “previous row” value in a SELECT statement?
...
@KromStern Not only PostgreSQL solution. SQL Window functions were introduced in SQL:2003 standard.
– Hans Ginzel
Dec 10 '15 at 8:18
...
Auto detect mobile browser (via user-agent?) [closed]
...browsers, so assuming that no javascript means mobile is just plain wrong. Window/viewport/screen resolution has nothing to do with a browser's size, and assuming that low resolution indicates handheld size will make your web app ugly and frustrating to many users. (For example: desktop browsers in ...
Code for a simple JavaScript countdown timer?
...s = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;
ID = window.setTimeout("update();", 1000);
function update() {
now = new Date();
seconds = (theevent - now) / 1000;
seconds = Math.round(seconds);
minutes = seconds / 60;
minutes = Math.round(minutes);
hours =...
End of support for python 2.7?
...L.
Meanwhile, there are some large companies that use 2.7 extensively on Windows (e.g. Enthought, Anaconda) and the thinking goes that somebody can probably be found to produce a Windows installer once in awhile, assuming that Python.org will still host a download.
So really what is happening he...
How to save an image to localStorage and display it on the next page?
...>
Then get the dimensions of your file into the input boxes
var _URL = window.URL || window.webkitURL;
$("#file-input").change(function(e) {
var file, img;
if ((file = this.files[0])) {
img = new Image();
img.onload = function() {
$("#file-h").val(this.height)...
How do I run a Python script from C#?
...m.Diagnostics;
using System.IO;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, ...
When should one use a spinlock instead of mutex?
... also note that on certain environments and conditions (such as running on windows on dispatch level >= DISPATCH LEVEL), you cannot use mutex but rather spinlock.
On unix - same thing.
Here is equivalent question on competitor stackexchange unix site:
https://unix.stackexchange.com/questions/510...
Import file size limit in PHPMyAdmin
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i had the same problem, i use XAMPP under Windows, the php info displays upload_max_filesize=128M, but in phpMyAdmin still display 8,192KB , whats wrong ¬¬
– AgelessEssence
May 24 '11 at 0:17
...
How do I alias commands in git?
...if the alias has a space:
$ git config --global alias.ci 'commit -v'
On windows, use double quotes if the alias has a space or a command line argument:
c:\dev> git config --global alias.ci "commit -v"
The alias command even accepts functions as parameters. Take a look at aliases.
...