大约有 43,000 项符合查询结果（耗时：0.0437秒） [XML]
Is bool a native C type?
...that is). This way one should not care if that is {1, 0}, {-1, 0}, {0, 1}, etc, and it is guaranteed to work in comparisons, because it was crafted using one.
– MestreLion
Feb 16 '15 at 5:55
...
Why do we usually use || over |? What is the difference?
...plicit != 0 comparison (pointers, floats, objects with an operator bool(), etc.) and bitwise operators are almost always nonsensical in those contexts.
share
|
improve this answer
|
...
Reading a plain text file in Java
...ame.txt"));
Scanner has several methods for reading in strings, numbers, etc... You can look for more information on this on the Java documentation page.
For example reading the whole content into a String:
StringBuilder sb = new StringBuilder();
while(in.hasNext()) {
sb.append(in.next());
}...
Export query result to .csv file in SQL Server 2008
...et any options. For example all the NULLs show in output files as "NULL", etc. Perhaps there is a way to set this that I don't know about, however.
– Noah
Sep 6 '13 at 7:36
14
...
How to use my view helpers in my ActionMailer views?
...ed from the same host (unless you are linking to hotmail.com or gmail.com, etc.)
share
|
improve this answer
|
follow
|
...
Meaning of = delete after function declaration
...den function to be visibly declared and considered for overload resolution etc., so that it can fail as early as possible and provide the clearest error to the user. Any solution which involves "hiding" the declaration reduces this effect.
– Leushenko
Feb 26 '1...
How do I position one image on top of another in HTML?
... of another becomes easy - with minimal and semantic markup (no empty divs etc).
markup:
<div class="overlap"></div>
css:
.overlap
{
width: 100px;
height: 100px;
position: relative;
background-color: blue;
}
.overlap:after
{
content: '';
position: absolute;
...
Best way to detect when a user leaves a web page?
...ution - since in most browsers the navigation controls (the nav bar, tabs, etc.) are located above the page content area, you can detect the mouse pointer leaving the page via the top and display a "before you leave" dialog. It's completely unobtrusive and it allows you to interact with the user bef...
How do I use su to execute the rest of the bash script as that user?
... to add this
username1 ALL=(username2) NOPASSWD: /path/to/svn
to your /etc/sudoers file
and change your script to:
sudo -u username2 -H sh -c "cd /home/$USERNAME/$PROJECT; svn update"
Where username2 is the user you want to run the SVN command as and username1 is the user running the script...
How do I get the base URL with PHP?
...u still have to make some cleanup, remove spaces, commas, carriage return, etc. Anything that is not a valid character for a domain. Check the PHP builtin parse_url function for an example.
share
|
...