大约有 15,208 项符合查询结果(耗时:0.0266秒) [XML]

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How to see log files in MySQL?

I've read that Mysql server creates a log file where it keeps a record of all activities - like when and what queries execute. ...
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How to check file MIME type with javascript before upload?

I have read this and this questions which seems to suggest that the file MIME type could be checked using javascript on client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server res...
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SQL - many-to-many table primary key

This question comes up after reading a comment in this question: 5 Answers 5 ...
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Why can I change value of a constant in javascript

...ray or object you're not re-assigning or re-declaring the constant, it's already declared and assigned, you're just adding to the "list" that the constant points to. So this works fine: const x = {}; x.foo = 'bar'; console.log(x); // {foo : 'bar'} x.foo = 'bar2'; console.log(x); // {foo : 'b...
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What are some good resources for learning about Artificial Neural Networks? [closed]

.... http://www.codeproject.com/KB/recipes/neural_dot_net.aspx you can start reading here: http://web.archive.org/web/20071025010456/http://www.geocities.com/CapeCanaveral/Lab/3765/neural.html I for my part have visited a course about it and worked through some literature. ...
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remove None value from a list without removing the 0 value

... This solution is already found in the top answer, or am I missing something? – Qaswed May 3 '19 at 7:28 add a comment ...
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Can not deserialize instance of java.util.ArrayList out of START_OBJECT token

...en take control of the deserialization process: Collection<COrder> readValues = new ObjectMapper().readValue( jsonAsString, new TypeReference<Collection<COrder>>() { } ); You would loose a bit of the convenience of not having to do that yourself, but you would easily sort o...
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What is the best Java library to use for HTTP POST, GET etc.? [closed]

...err.println("Method failed: " + method.getStatusLine()); } // Read the response body. byte[] responseBody = method.getResponseBody(); // Deal with the response. // Use caution: ensure correct character encoding and is not binary data System.out.println(new Strin...
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java.lang.NoClassDefFoundError: Could not initialize class XXX

...java.lang.ClassNotFoundException). The ClassLoader ran into an error while reading the class definition when trying to read the class. Put a try/catch inside your static initializer and look at the exception. If you read some files there and it differs from your local environment it's very likely t...
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When should I really use noexcept?

...re as to when I should consider using it in practice. Based on what I have read so far, the last-minute addition of noexcept seems to address some important issues that arise when move constructors throw. However, I am still unable to provide satisfactory answers to some practical questions that l...