大约有 45,335 项符合查询结果（耗时：0.0475秒） [XML]
`require': no such file to load — mkmf (LoadError)
...
After some search for a solution it turns out the -dev package is needed, not just ruby1.8. So if you have ruby1.9.1 doing
sudo apt-get install ruby1.9.1-dev
or to install generic ruby version, use (as per @lamplightdev comment):
sudo apt-get install rub...
Difference between & and && in Java? [duplicate]
...difference between & and && is?
A few days I wrote a condition for an if statement the looked something like:
...
How to check if activity is in foreground or in visible background?
...a splash screen on a timer. My problem is that before I finish() my activity I need to check that the next activity has started because a system dialogue box pops-up and I only want to finish() ; once the user has selected an option from the dialogue box?
...
Stacked Tabs in Bootstrap 3
...
margin-bottom: 0;
}
.tabs-below > .nav-tabs > li > a {
-webkit-border-radius: 0 0 4px 4px;
-moz-border-radius: 0 0 4px 4px;
border-radius: 0 0 4px 4px;
}
.tabs-below > .nav-tabs > li > a:hover,
.tabs-below > .nav-tabs > li > a:focus {
border-top-col...
UTF-8 without BOM
I have javascript files that I need them to be saved in UTF-8 (without BOM), every time I convert them to the correct format in Notepad++ , they are reverted back to UTF-8 with BOM when I open them in Visual Studio. How can I stop VS2010 from doing that?
...
How do I specify the Linq OrderBy argument dynamically?
...
Here's a possiblity using reflection...
var param = "Address";
var propertyInfo = typeof(Student).GetProperty(param);
var orderByAddress = items.OrderBy(x => propertyInfo.GetValue(x, null));
...
SQL update fields of one table from fields of another one
...
The question is asking about how to do it without specifying all the column names. (And I am too.)
– cluesque
Jun 6 '12 at 16:29
2
...
MVC which submit button has been pressed
...
Name both your submit buttons the same
<input name="submit" type="submit" id="submit" value="Save" />
<input name="submit" type="submit" id="process" value="Process" />
Then in your controller get the value of submit. Only the bu...
Converting String to “Character” array in Java
...form the conversion. I know that I can convert a String to an array of primitive datatype type "char" with the toCharArray() method but it doesn't help in converting a String to an array of objects of Character type.
...
How to call Base Class's __init__ method from the child class? [duplicate]
...
You could use super(ChildClass, self).__init__()
class BaseClass(object):
def __init__(self, *args, **kwargs):
pass
class ChildClass(BaseClass):
def __init__(self, *args, **kwargs):
super(ChildClass, self).__init__(*args, **kwargs)
Your in...