大约有 46,000 项符合查询结果(耗时:0.0623秒) [XML]
How do I install the OpenSSL libraries on Ubuntu?
...d some code on Ubuntu 10.04 LTS that uses OpenSSL 1.0.0. When I run make, it invokes g++ with the "-lssl" option. The source includes:
...
How to add 'ON DELETE CASCADE' in ALTER TABLE statement
...e a foreign key constraint in my table, I want to add ON DELETE CASCADE to it.
9 Answers
...
Most efficient T-SQL way to pad a varchar on the left to a certain length?
...
This is simply an inefficient use of SQL, no matter how you do it.
perhaps something like
right('XXXXXXXXXXXX'+ rtrim(@str), @n)
where X is your padding character and @n is the number of characters in the resulting string (assuming you need the padding because you are dealing with ...
How to put a delay on AngularJS instant search?
...rformance issue that I can't seem to address. I have an instant search but it's somewhat laggy, since it starts searching on each keyup() .
...
How to make an unaware datetime timezone aware in python
...tz.utc.localize(unaware)
assert aware == now_aware
For the UTC timezone, it is not really necessary to use localize since there is no daylight savings time calculation to handle:
now_aware = unaware.replace(tzinfo=pytz.UTC)
works. (.replace returns a new datetime; it does not modify unaware.)
...
How do I check if an index exists on a table field in MySQL?
...follow
|
edited Jan 15 '15 at 3:38
mlissner
13.3k1515 gold badges7676 silver badges139139 bronze badges
...
Twitter image encoding challenge [closed]
If a picture's worth 1000 words, how much of a picture can you fit in 140 characters?
15 Answers
...
Retrieving Property name from lambda expression
...Here's a method that'll return the PropertyInfo object for the expression. It throws an exception if the expression is not a property.
public PropertyInfo GetPropertyInfo<TSource, TProperty>(
TSource source,
Expression<Func<TSource, TProperty>> propertyLambda)
{
Type t...
How to build query string with Javascript
... to search for an answer to this question some while ago, but I ended up writing my own function that extracts the values from the form ..
it's not perfect but it fits my needs.
function form_params( form )
{
var params = new Array()
var length = form.elements.length
for( var i = 0; i ...
Is a URL allowed to contain a space?
...URL must be encoded, is + just a commonly followed convention, or a legitimate alternative?
10 Answers
...