大约有 16,000 项符合查询结果（耗时：0.0190秒） [XML]
find first sequence item that matches a criterion [duplicate]
What would be the most elegant and efficient way of finding/returning the first list item that matches a certain criterion?
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Correct use of transactions in SQL Server
I have 2 commands and need both of them executed correctly or none of them executed. So I think I need a transaction, but I don't know how to use it correctly.
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What does the 'u' symbol mean in front of string values? [duplicate]
...ct that you're seeing the u means you're on Python 2 - strings are Unicode by default on Python 3, but on Python 2, the u in front distinguishes Unicode strings. The rest of this answer will focus on Python 2.
You can create a Unicode string multiple ways:
>>> u'foo'
u'foo'
>>> uni...
How to merge multiple lists into one list in python? [duplicate]
...'] + ['was'] + ['annoying']
You should read the Python tutorial to learn basic info like this.
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Recommended way of getting data from the server
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There are cases when $resource may not be appropriate when talking to backend. This shows how to set up $resource like behavior without using resource.
angular.module('myApp').factory('Book', function($http) {
// Book is a class which we can use for retrieving ...
Testing for empty or nil-value string [duplicate]
I'm trying to set a variable conditionally in Ruby. I need to set it if the variable is nil or empty (0 length string). I've come up with the following:
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How to create a circular ImageView in Android? [duplicate]
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I too needed a rounded ImageView, I used the below code, you can modify it accordingly:
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Canvas;
import android.graphics.Color;
import android....
Javascript/jQuery detect if input is focused [duplicate]
...ure javascript:
this === document.activeElement // where 'this' is a dom object
or with jquery's :focus pseudo selector.
$(this).is(':focus');
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Python3 integer division [duplicate]
...at I can divide two integers and get a float. How do you get the Python2.6 behaviour back? Is there a different method to get int/int = int?
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Get data from JSON file with PHP [duplicate]
...;/pre>';
This will print out the contents of the array in a nice readable format. Note that the second parameter is set to true in order to let print_r() know that the output should be returned (rather than just printed to screen). Then, you access the elements you want, like so:
$temperatureM...