大约有 6,887 项符合查询结果（耗时：0.0189秒） [XML]
Is there a Mutex in Java?
...
See this page: http://www.oracle.com/technetwork/articles/javase/index-140767.html
It has a slightly different pattern which is (I think) what you are looking for:
try {
mutex.acquire();
try {
// do something
} finally {
mutex.release();
}
} catch(InterruptedException ie)...
Any good, visual HTML5 Editor or IDE? [closed]
... > Enter Project name
Create New HTML File
Name to index.html
Select Properties of HTML File
Hit Ctrl+Space
similarly create new *.css file
Right Click on the css file > Properties > Web Content Settings > Select CSS3 Profile > ok Hit CTRL...
How to get first element in a list of tuples?
...t; b
[1, 2]
The itemgetter statement returns a function that returns the index of the element you specify. It's exactly the same as writing
>>> b = map(lambda x: x[0], a)
But I find that itemgetter is a clearer and more explicit.
This is handy for making compact sort statements. For ...
Overriding !important style
..., "\\-") + "\\s*:(.*?)(;|$))")),
idx;
if (result) {
idx = result.index + result[0].indexOf(result[1]);
el.style.cssText = el.style.cssText.substring(0, idx) +
style + ": " + value + ";" +
el.style.cssText.substring(idx + result[1].length);
} else {
el.style.cssText +=...
Initialising an array of fixed size in python [duplicate]
...irements of the question because you have a defined size array and you can index one of the five elements without getting an IndexError. This is the closest thing to the C expression.
– user2233706
Oct 26 '14 at 17:43
...
Appending to an object
...
This is the proper answer though; how can you know which index you are going to add new object ?
– Capan
Mar 15 '19 at 8:41
1
...
Which selector do I need to select an option by its text?
...tions worked for me in jQuery 1.7.2 because I'm trying to set the selected index of the list based on the value from a textbox, and some text values are contained in multiple options. I ended up using the following:
$('#mySelect option:contains(' + value + ')').each(function(){
if ($(this).text...
Remove trailing newline from the elements of a string list
... strip_list.append(lines[a].strip())
a is a member of your list, not an index. What you could write is this:
[...]
for a in lines:
strip_list.append(a.strip())
Another important comment: you can create an empty list this way:
strip_list = [0] * 20
But this is not so useful, as .append a...
What does “=>” mean in PHP?
...
// "steve's pass is: secr3t"
Note that this can be used for numerically indexed arrays too.
Example:
$foo = array('car', 'truck', 'van', 'bike', 'rickshaw');
foreach ($foo as $i => $type) {
echo "{$i}: {$type}\n";
}
// prints:
// 0: car
// 1: truck
// 2: van
// 3: bike
// 4: rickshaw
...
Can I make a not submit a form?
... cancel changes
return false;
});
</script>
<a href="index.html"><button>Cancel changes</button></a>
<button type="submit">Submit</button>
As an added benefit, with this, you can get rid of the anchor tag and just use the button.
...