大约有 4,400 项符合查询结果（耗时：0.0147秒） [XML]
What's the u prefix in a Python string?
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That was a fun read! Thanks! Article is 17 years old and it's still accurate. Wow.
– Kerwin Sneijders
Feb 28 at 11:08
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Animated GIF in IE stopping
...ross this workaround, and it actually does work.
Here is the gist of it:
function showProgress() {
var pb = document.getElementById("progressBar");
pb.innerHTML = '<img src="./progress-bar.gif" width="200" height ="40"/>';
pb.style.display = '';
}
and in your html:
<input t...
How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?
...thSegments.last()
If they don't give you the right name you should use:
fun Uri.getName(context: Context): String {
val returnCursor = context.contentResolver.query(this, null, null, null, null)
val nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
returnCursor.mov...
How to detect scroll position of page using jQuery
...entDefault()
var scroll = $(this).scrollTop();
if(scroll == 0){
alert(123)
}
});
This code for chat_boxes for loading previous messages
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Use of alloc init instead of new
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Very old question, but I've written some example just for fun — maybe you'll find it useful ;)
#import "InitAllocNewTest.h"
@implementation InitAllocNewTest
+(id)alloc{
NSLog(@"Allocating...");
return [super alloc];
}
-(id)init{
NSLog(@"Initializing...");
retur...
Cannot open include file 'afxres.h' in VC2010 Express
...
123
Had the same problem . Fixed it by installing Microsoft Foundation Classes for C++.
Start
Ch...
Espresso: Thread.sleep( );
...ained with other ViewInteractions:
/**
* Wait for view to be visible
*/
fun ViewInteraction.waitUntilVisible(timeout: Long): ViewInteraction {
val startTime = System.currentTimeMillis()
val endTime = startTime + timeout
do {
try {
check(matches(isDisplayed()))
...
How to convert int to QString?
...
123
And if you want to put it into string within some text context, forget about + operator.
Simp...
How to copy a collection from one database to another in MongoDB
....
You could do something like:
db.<collection_name>.find().forEach(function(d){ db.getSiblingDB('<new_database>')['<collection_name>'].insert(d); });
Please note that with this, the two databases would need to share the same mongod for this to work.
Besides this, you can do a...
Are +0 and -0 the same?
... Actually, this behavior models limit calculation in math. For example function 1/x has a value infinity in 0, however, it is separated if we are approaching 0 from the positive of negative side; in the former, the result is +inf, in the latter, -inf.
– Agoston Horvath
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