大约有 47,000 项符合查询结果(耗时:0.0546秒) [XML]

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How do I get a substring of a string in Python?

...is a step. So reversing a string is as simple as: some_string[::-1] Or selecting alternate characters would be: "H-e-l-l-o- -W-o-r-l-d"[::2] # outputs "Hello World" The ability to step forwards and backwards through the string maintains consistency with being able to array slice from the star...
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How to embed a text file in a .NET assembly?

... Right-click the project file, select Properties. In the window that opens, go to the Resources tab, and if it has just a blue link in the middle of the tab-page, click it, to create a new resource. Then from the toolbar above the tab-page, select to a...
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What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?

...ction is not used to get an identity, it's used to create an identity in a select...into query. The session is the database connection. The scope is the current query or the current stored procedure. A situation where the scope_identity() and the @@identity functions differ, is if you have a trig...
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Programmatically relaunch/recreate an activity?

... UPDATE: Android SDK 11 added a recreate() method to activities. I've done that by simply reusing the intent that started the activity. Define an intent starterIntent in your class and assign it in onCreate() using starterIntent = ...
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Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”

...ng to the properties of said project->java build path->libraries->select "JRE System Library", click Edit and select "Workspace default JRE" – maayank Jan 30 '11 at 9:56 ...
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chrome undo the action of “prevent this page from creating additional dialogs”

...correct answer is: YES, there is a better way. Right click on the tab and select "Duplicate", then close the original tab if you wish. Alerting is re-enabled in the duplicate. The duplicate tab seems to recreate the running state of the original tab so you can just continue where you were. ...
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What is SaaS, PaaS and IaaS? With examples

... Hadoop is based on previous works by Google(GFS and MapReduce), it is not from Google. It is an Apache project. You can find more here. It is just a distributed computing platform and does not fall into any of these service models, IMHO. Microsoft's Windows Azure is again an example of IaaS. As f...
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How to get the insert ID in JDBC?

...or Oracle, you can invoke a CallableStatement with a RETURNING clause or a SELECT CURRVAL(sequencename) (or whatever DB-specific syntax to do so) directly after the INSERT in the same transaction to obtain the last generated key. See also this answer. ...
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How can I get the current language in Django?

... I voted this up (from -1 for some reason). Note the following (from docs.djangoproject.com/en/dev/topics/i18n/deployment/… "with static (middleware-less) translation, the language is in settings.LANGUAGE_CODE, while with dynamic (middleware...
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How do I migrate an SVN repository with history to a new Git repository?

...very differently. You need to learn Git, and if you want to track changes from SVN upstream, you need to learn git-svn. The git-svn main page has a good examples section: $ git svn --help share | ...