大约有 41,000 项符合查询结果（耗时：0.0705秒） [XML]
Pass Array Parameter in SqlCommand
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edited Feb 21 '18 at 18:47
answered Mar 4 '10 at 7:59
Bri...
Django: Get an object form the DB, or 'None' if nothing matches
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answered Jul 30 '13 at 4:37
Cesar CanassaCesar Canassa
12.1k66 gold badges5151 silver badges6363 bronze badges
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CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False
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answered Jul 21 '14 at 4:10
Kye RussellKye Russell
3,33133 gold badges1616 silver badges3939 bronze badges
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
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edited Jun 26 '14 at 4:02
community wiki
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Is there a git-merge --dry-run option?
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mipadimipadi
343k7777 gold badges491491 silver badges463463 bronze badges
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How do I check if file exists in jQuery or pure JavaScript?
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435
With jQuery:
$.ajax({
url:'http://www.example.com/somefile.ext',
type:'HEAD',
err...
Automatically deleting related rows in Laravel (Eloquent ORM)
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edited Sep 14 '18 at 22:53
Paras
7,6031717 silver badges4343 bronze badges
answered Nov 20...
Displaying the build date
...ld - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321.
25 Answers
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Why does this async action hang?
I have a multi-tier .Net 4.5 application calling a method using C#'s new async and await keywords that just hangs and I can't see why.
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How can I detect when the mouse leaves the window?
...ution below was tested on IE 8.0.6, FireFox 3.6.6, Opera 10.53, and Safari 4 on an MS Windows XP machine.
First a little function from Peter-Paul Koch; cross browser event handler:
function addEvent(obj, evt, fn) {
if (obj.addEventListener) {
obj.addEventListener(evt, fn, false);
}
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