大约有 46,000 项符合查询结果(耗时:0.0791秒) [XML]

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Force to open “Save As…” popup open at text link click for PDF in HTML

I have some big size PDF catalogs at my website, and I need to link these as download. When I googled, I found such a thing noted below. It should open the " Save As... " popup at link click... ...
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How to use LINQ to select object with minimum or maximum property value

... Probably a little slower than just implementing IComparable and using Min (or a for loop). But +1 for a O(n) linqy solution. – Matthew Flaschen May 27 '09 at 6:07 4...
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Can javax.persistence.Query.getResultList() return null?

And if so, under what circumstances? 7 Answers 7 ...
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Sql query to insert datetime in SQL Server

... edited Sep 7 at 11:19 Sandra Guilep Zouaoui Zandeh 3,18466 gold badges1616 silver badges4242 bronze badges answered Oct 18 '12 at 14:59 ...
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What is the theoretical maximum number of open TCP connections that a modern Linux box can have

...a '64K' limit that is often cited, but that is per client per server port, and needs clarifying. Each TCP/IP packet has basically four fields for addressing. These are: source_ip source_port destination_ip destination_port < client > < server > Inside the...
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Is there a simple, elegant way to define singletons? [duplicate]

... I don't really see the need, as a module with functions (and not a class) would serve well as a singleton. All its variables would be bound to the module, which could not be instantiated repeatedly anyway. If you do wish to use a class, there is no way of creating private classes...
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How to add a separator to a WinForms ContextMenu?

... This works just as well as the dash, and i suspect the Winforms will translate the dash to a ToolStripSeparator. I for one think this solution is more obvious for anyone who has to maintain the code. yourContextMenu.Items.Add(new ToolStripSeparator()); ...
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How to paste in a new line with vim?

...nt line). This always works |linewise|, thus this command can be used to put a yanked block as new lines. :[line]pu[t]! [x] Put the text [from register x] before [line] (default current line). Unfortunately it’s not shorter than you...
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IllegalArgumentException or NullPointerException for a null parameter? [closed]

I have a simple setter method for a property and null is not appropriate for this particular property. I have always been torn in this situation: should I throw an IllegalArgumentException , or a NullPointerException ? From the javadocs, both seem appropriate. Is there some kind of an understood...
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How to query MongoDB with “like”?

... Actually, it depends. If the query doesn't use an index, and must do a table scan, then it can certainly be expensive. If you're doing a 'starts with' regex query, then that can use an index. Best to run an explain() to see what's happening. – Kyle Banker ...