大约有 42,000 项符合查询结果(耗时:0.0174秒) [XML]

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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe

...e if there are no nulls in the DB, but will fail once nulls are inserted. And you can always return the primitive type from the getter. Ex: private Integer num; public void setNum(Integer i) { this.num = i; } public int getNum() { return this.num; } But in most cases you will...
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How to find server name of SQL Server Management Studio

...tance. To connect to it in Management Studio, just type . (dot) OR (local) and click Connect. If the instance name is different, then use .\[instance name] to connect to it (for example if the instance name is SQL2008, connect to .\SQL2008). Also make sure SQL Server and SQL Server Browser services...
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A more useful statusline in vim? [closed]

I’d like to make my statusline in vim more informative and interesting, and for that I need some ideas. How did you customize your statusline? ...
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How can I quickly sum all numbers in a file?

I have a file which contains several thousand numbers, each on it's own line: 33 Answers ...
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Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie

...nv PRODUCTS_PATH /Users/mortimer/Projects/my_products launchctl setenv ANDROID_NDK_HOME /Applications/android-ndk launchctl setenv PATH $PATH:/Applications/gradle/bin </string> </array> <key>RunAtLoad</key> <true/> </dict> </plist> You c...
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Detecting a mobile browser

...m detectmobilebrowsers.com): Here's a function that uses an insanely long and comprehensive regex which returns a true or false value depending on whether or not the user is browsing with a mobile. window.mobileCheck = function() { let check = false; (function(a){if(/(android|bb\d+|meego).+mob...
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Git serve: I would like it that simple

... Navigate into your project and start git-daemon with the following switches: cd project git daemon --reuseaddr --base-path=. --export-all --verbose This tells git-daemon to serve up all projects inside the current directory (which I assume is the pr...
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How to determine CPU and memory consumption from inside a process?

...om the Performance Data Helper library (PDH), which is a bit "unintuitive" and takes a lot of painful trial and error to get to work. (At least it took me quite a while, perhaps I've been only a bit stupid...) Note: for clarity all error checking has been omitted from the following code. Do check t...
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What does the 'L' in front a string mean in C++?

...r extended character set. Wikipedia has a little discussion on this topic, and c++ examples. share | improve this answer | follow | ...
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Emacs on Mac OS X Leopard key bindings

I'm a Mac user and I've decided to learn Emacs. I've read that to reduce hand strain and improve accuracy the CTRL and CAPS LOCK keys should be swapped. How do I do this in Leopard? ...