大约有 8,300 项符合查询结果(耗时:0.0293秒) [XML]

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Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f

...nknownKeyException', reason: '[<UIViewController 0x3927310> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key string.' It is caused by the Second view controller in MainWindow.xib having a class of UIViewController instead of SecondView. Changing to the cor...
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Can Python print a function definition?

In JavaScript, one can print out the definition of a function. Is there a way to accomplish this in Python? 7 Answers ...
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What is meant with “const” at end of function declaration? [duplicate]

... A "const function", denoted with the keyword const after a function declaration, makes it a compiler error for this class function to change a member variable of the class. However, reading of a class variables is okay inside of the ...
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What's the best way to use R scripts on the command line (terminal)?

It's very convenient to have R scripts for doing simple plots from the command line. However, running R from bash scripts is not convenient at all. The ideal might be something like ...
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How to show the last queries executed on MySQL?

... For those blessed with MySQL >= 5.1.12, you can control this option globally at runtime: Execute SET GLOBAL log_output = 'TABLE'; Execute SET GLOBAL general_log = 'ON'; Take a look at the table mysql.general_log If you...
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How to read the value of a private field from a different class in Java?

...ave a poorly designed class in a 3rd-party JAR and I need to access one of its private fields. For example, why should I need to choose private field is it necessary? ...
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How to check if a symlink exists

I'm trying to check if a symlink exists in bash. Here's what I've tried. 8 Answers 8 ...
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Git search for string in a single file's history

So if I have a file called foo.rb and it is giving me an error for a missing method called bar , so I want to search the history of foo.rb for the string bar to see if it was ever defined in the past. ...
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)

I'm using NLTK to perform kmeans clustering on my text file in which each line is considered as a document. So for example, my text file is something like this: ...
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What are fixtures in programming?

I have heard of this term many times (in the context of programming) but couldn't find any explanation of what it meant. Any good articles or explanations? ...