大约有 8,100 项符合查询结果(耗时:0.0220秒) [XML]

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MySQL Results as comma separated list

... You can use GROUP_CONCAT to perform that, e.g. something like SELECT p.id, p.name, GROUP_CONCAT(s.name) AS site_list FROM sites s INNER JOIN publications p ON(s.id = p.site_id) GROUP BY p.id, p.name; ...
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How do I import the Django DoesNotExist exception?

... You don't need to import it - as you've already correctly written, DoesNotExist is a property of the model itself, in this case Answer. Your problem is that you are calling the get method - which raises the exception - before it is passed to as...
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Prevent contenteditable adding on ENTER - Chrome

I have a contenteditable element, and whenever I type some stuff and hit ENTER it creates a new <div> and places the new line text in there. I don't like this one little bit. ...
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Formatting a number with leading zeros in PHP [duplicate]

... Use sprintf : sprintf('%08d', 1234567); Alternatively you can also use str_pad: str_pad($value, 8, '0', STR_PAD_LEFT); share | ...
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How to create a directory and give permission in single command

How to create a directory and give permission in single command in Linux? 8 Answers 8 ...
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Is it sometimes bad to use ?

...t it's not semantic. If you want two items in different visual blocks, you probably want them in different logical blocks. In most cases this means just using different elements, for example <p>Stuff</p><p>Other stuff</p>, and then using CSS to space the blocks out properly....
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线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...于一个线程当中。当你在B线程使用A线程的窗口对象指针pWnd,B线程对此对象指针做AssertValid时,会因为以下几种原因导致断言失败: 1. CHandleMap* pMap = afxMapHWND(); ASSERT(pMap != NULL)失败;该线程没有映射表。原因这个线程只是工...
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Change the color of glyphicons to blue in some- but not at all places using Bootstrap 2

I am using the Bootstrap framework for my UI. I want to change the color of my glyphicons to blue, but not in all places. In some places it should use the default color. ...
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Check if two linked lists merge. If so, where?

...f length b+c, where c is the length of their common "tail" (after the mergepoint). Let's denote them as follows: x = a+c y = b+c Since we don't know the length, we will calculate x and y without additional iterations; you'll see how. Then, we iterate each list and reverse them while iterating! ...
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Bash script to calculate time elapsed

I am writing a script in bash to calculate the time elapsed for the execution of my commands, consider: 10 Answers ...