大约有 47,000 项符合查询结果(耗时:0.0635秒) [XML]

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SVN Commit specific files

... s/.\ *//`; do LIST="${LIST} $f $NULL on"; done dialog --checklist "Select files to commit" 30 60 30 $LIST 2>/tmp/svnlist.txt svn ci `cat /tmp/svnlist.txt|sed 's/"//g'` share | improve th...
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How do you query for “is not null” in Mongo?

..., the query returns only the documents that do not contain the field. $ne selects the documents where the value of the field is not equal to the specified value. This includes documents that do not contain the field. So in your provided case following query going to return all the documents with i...
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What is the optimal algorithm for the game 2048?

...ach possibility), and "maximization" steps (testing all possible moves and selecting the one with the best score). The tree search terminates when it sees a previously-seen position (using a transposition table), when it reaches a predefined depth limit, or when it reaches a board state that is high...
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Is background-color:none valid CSS?

...or none is not a background-color value : none transparent may have been selected as better term instead of 0 or none values during the development of specification of CSS. share | improve this an...
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How to make a phone call programmatically?

... In the selected answer, there is not check for marshmallow permission. It will not work directly in marshmallow 6.0 or above device. I know I am too late but this question has large vote so I thought it will help to others in futu...
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How to create composite primary key in SQL Server 2008

...... Right Click on the Table you wish to create the composite key on and select Design. Highlight the columns you wish to form as a composite key Right Click over those columns and Set Primary Key To see the SQL you can then right click on the Table > Script Table As > Create To ...
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Why not infer template parameter from constructor?

...iable<Variable<int>> ? The key question is, does the compiler select the type-inferred constructor here or the copy constructor? Trying the code out, we can see that the copy constructor is selected. To expand on the example: Variable var(num); // infering ctor Variable var2(va...
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How can I disable a button in a jQuery dialog from a function?

...line that will be of use (under the "buttons" section. var buttons = $('.selector').dialog('option', 'buttons'); You'll need to get the buttons collection from the dialog, loop through that to find which one you need, and then set the disabled attribute as I showed above. ...
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Importance of varchar length in MySQL table

... Anytime your select query uses a temporary table (group and order by operations, among other things) it will convert varchar(200) to a char(200) and performance will suffer. – Jamie Feb 7 '13 at 20:1...
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Retrieve only the queried element in an object array in MongoDB collection

...her answers if you are using a more recent version of MongoDB. The field selector parameter is limited to complete properties. It cannot be used to select part of an array, only the entire array. I tried using the $ positional operator, but that didn't work. The easiest way is to just filter the ...