大约有 20,185 项符合查询结果(耗时:0.0332秒) [XML]

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What is the difference between MediaPlayer and VideoView in Android

I was wondering if there's a difference between them when it comes to streaming videos. 4 Answers ...
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Static implicit operator

I recently found this code: 4 Answers 4 ...
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MYSQL Dump only certain rows

I am trying to do a mysql dump of a few rows in my database. I can then use the dump to upload those few rows into another database. The code I have is working, but it dumps everything. How can I get mysqldump to only dump certain rows of a table? ...
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initializing a Guava ImmutableMap

Guava offers a nice shortcut for initializing a map. However I get the following compiler error (Eclipse Indigo) when my map initializes to nine entries. ...
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Why can't I use an alias in a DELETE statement?

In SQL Server Compact Edition in Visual Studio 2010 (maybe SQL Server and SQL in general, I don't know), this command works: ...
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CATALINA_OPTS vs JAVA_OPTS - What is the difference?

I was trying to find out the difference between Apache Tomcat variables - CATALINA_OPTS and JAVA_OPTS in SO and surprised to see that there is no question/answer posted here yet. So I thought of sharing it here (with answer) after finding out the difference. Check the answer/difference below...
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Associativity of “in” in Python?

I'm making a Python parser, and this is really confusing me: 4 Answers 4 ...
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Checking if a folder exists (and creating folders) in Qt, C++

In Qt, how do I check if a given folder exists in the current directory? If it doesn't exist, how do I then create an empty folder? ...
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Namespace for [DataContract]

I can't find the namespace to use for [DataContract] and [DataMember] elements. According to what I've found, it seems that adding the following should be enough, but in my case it is not. ...
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Reduce, fold or scan (Left/Right)?

When should I use reduceLeft , reduceRight , foldLeft , foldRight , scanLeft or scanRight ? 3 Answers ...