大约有 41,000 项符合查询结果(耗时:0.0550秒) [XML]

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Random “Element is no longer attached to the DOM” StaleElementReferenceException

...ms like a complete nightmare. The Chrome webdriver is currently unusable, and the other drivers are quite unreliable, or so it seems. I am battling many problems, but here is one. ...
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What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets? ...
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How to prompt for user input and read command-line arguments [closed]

How do I have a Python script that a) can accept user input and how do I make it b) read in arguments if run from the command line? ...
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?

...return a status code that reflects success (status codes from 200 to 206 and from 300 to 307) but include a message body that describes an error condition. Doing this prevents HTTP-aware software from detecting errors. For example, a cache will store it as successful response and serve it to...
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'float' vs. 'double' precision

... in C use IEEE 754 encoding. This type of encoding uses a sign, a significand, and an exponent. Because of this encoding, many numbers will have small changes to allow them to be stored. Also, the number of significant digits can change slightly since it is a binary representation, not a decimal ...
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Custom Compiler Warnings

... compiler warnings telling you that the object/method/property is obsolete and somthing else should be used. I'm currently working on a project that requires a lot of refactoring an ex-employees code. I want to write a custom attribute that I can use to mark methods or properties that will generate ...
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How can I negate the return-value of a process?

...at negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist": ...
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Ruby on Rails Callback, what is difference between :before_save and :before_create?

Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ? ...
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What is the difference between SessionState and ViewState?

What is the difference between SessionState and ViewState in ASP.NET? 5 Answers 5 ...
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How to securely save username/password (local)?

...hich you need to log into first. The account details consist of username and password, and they need to be saved locally. It's just a matter of security, so other people using the same computer can't see everyone's personal data. What is the best/most secure way to save this data? ...