大约有 40,000 项符合查询结果（耗时：0.0642秒） [XML]
What is the proper #include for the function 'sleep()'?
...m using the Big Nerd Ranch book Objective-C Programming, and it starts out by having us write in C in the first few chapters. In one of my programs it has me create, I use the sleep function. In the book it told me to put #include <stdlib.h> under the #include <stdio.h> part. This is...
How do I load a PHP file into a variable?
...
I suppose you want to get the content generated by PHP, if so use:
$Vdata = file_get_contents('http://YOUR_HOST/YOUR/FILE.php');
Otherwise if you want to get the source code of the PHP file, it's the same as a .txt file:
$Vdata = file_get_contents('path/to/YOUR/FILE.ph...
How to install mongoDB on windows?
... before we use it.
So, how can we start it?
We have to start the mongo db by using the command mongod. Execute this from the bin folder of mongo.
Let’s see what had happened.
Again a wonderfully formatted exception J we got right? Did you notice what I have highlighted on top? Yeah it is the mon...
JavaScript checking for null vs. undefined and difference between == and ===
...and `""`, and `0`, and `NaN`, and [of course] `false`)
}
This is defined by ToBoolean in the spec.
...and what is the difference between the null and undefined?
They're both values usually used to indicate the absence of something. undefined is the more generic one, used as the default value...
.gitignore exclude files in directory but not certain directories
...
They can be empty, if the folders are ignored by an upper .gitignore file. In this case, its exact my answer.
– KingCrunch
Apr 8 '11 at 21:12
4
...
Difference between Node object and Element object?
...tally confused between Node object and Element object.
document.getElementById() returns Element object while document.getElementsByClassName()
returns NodeList object(Collection of Elements or Nodes?)
...
How can I specify the base for Math.log() in JavaScript?
...rns the natural logarithm of x (same as ln(x)), for base 10 you can divide by Math.log(10) (same as ln(10)):
function log10(val) {
return Math.log(val) / Math.LN10;
}
Math.LN10 is a built-in precomputed constant for Math.log(10), so this function is essentially identical to:
function log10(val...
How to make a DIV visible and invisible with JavaScript
...
visibility has the side effect that the space occupied by the element remains reserved. That may or may not be what the OP wants
– Pekka
Feb 26 '12 at 19:23
1
...
MPICH vs OpenMPI
...also supports the Cray Gemini interconnect, but its usage is not supported by Cray. More recently, MPICH supported InfiniBand through a netmod (now deprecated), but MVAPICH2 has extensive optimizations that make it the preferred implementation in nearly all cases.
Feature Support from the Latest M...
jQuery click not working for dynamically created items [duplicate]
... @yes123 Well, because .live and .delegate have been superseded by .on. The .on method provides all functionality for binding events, no other methods are needed anymore.
– Šime Vidas
Feb 28 '12 at 15:16
...