大约有 30,000 项符合查询结果(耗时:0.0401秒) [XML]

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PHP & mySQL: Year 2038 Bug: What is it? How to solve it?

...can we do to the existing applications that use TIMESTAMP, to avoid the so-called problem, when it really occurs? Few PHP applications will still be around in 2038, though it's hard to foresee as the web hardly a legacy platform yet. Here is a process for altering a database table column to conver...
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Yii2 data provider default sorting

...nk there's proper solution. Configure the yii\data\Sort object: $dataProvider = new ActiveDataProvider([ 'query' => $query, 'sort'=> ['defaultOrder' => ['topic_order' => SORT_ASC]], ]); Official doc link ...
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How are 3D games so efficient? [closed]

...t's common for demos of graphics APIs (like dxdemo) to fall back to what's called a software renderer when your hardware doesn't support all of the features needed to show a pretty example. These features might include things like shadows, reflection, ray-tracing, physics, et cetera. This mimics th...
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How to get a Docker container's IP address from the host

...{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_name_or_id Old Docker client syntax is: docker inspect --format '{{ .NetworkSettings.IPAddress }}' container_name_or_id These commands will return the Docker container's IP address. As mentioned in the comments: if you are on W...
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JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instanti

... @Suman I would not call this a dummy constructor - it's just the default constructor. Not only is it perfectly valid, but is required for many kinds of java bean-type processing. (And, of course, it tripped me up. :-) ) – ...
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When to make a type non-movable in C++11?

...t applies to std::atomic<T> objects: unless they could be moved atomically it wouldn't be possible to safely move them, another thread might be trying to call compare_exchange_strongon the object right at the moment it's being moved. So another case where types should not be movable is where t...
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Git: How to edit/reword a merge commit's message?

... problem, for some reason this is an artifact of rebasing because what basically happened is that after rebasing you ended up with a detached hed, so the -force should fix that and should push everything. – Radu Comaneci Apr 5 '13 at 8:46 ...
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Select2 dropdown but allow new values by user?

...page) { return {results: data.results}; }, "url": url }, id: function(object) { return object.text; }, //Allow manually entered text in drop down. createSearchChoice:function(term, data) { if ( $(data).filter( function() { return this.text.localeCompare(term)===...
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How do I iterate over a JSON structure? [duplicate]

... four:4, five:5 }; jQuery.each(arr, function() { $("#" + this).text("My id is " + this + "."); return (this != "four"); // will stop running to skip "five" }); jQuery.each(obj, function(i, val) { $("#" + i).append(document.createTextNode(" - " + val)); }); ...
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jQuery get selected option value (not the text, but the attribute 'value')

...he option. $('select[name=selector] option').filter(':selected').val() Side note: Using filter is better then using :selected selector directly in the first query. If inside a change handler, you could use simply this.value to get the selected option value. See demo for more options. //ways...