大约有 11,287 项符合查询结果(耗时:0.0243秒) [XML]

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Explaining Python's '__enter__' and '__exit__'

... Using these magic methods (__enter__, __exit__) allows you to implement objects which can be used easily with the with statement. The idea is that it makes it easy to build code which needs some 'cleandown' code executed (think of it as a try-finally block). Some more explanation here. A useful...
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Does python have an equivalent to Java Class.forName()?

I have the need to take a string argument and create an object of the class named in that string in Python. In Java, I would use Class.forName().newInstance() . Is there an equivalent in Python? ...
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How do you add a Dictionary of items into another Dictionary

... Dima 22.7k55 gold badges4949 silver badges8181 bronze badges answered Jun 5 '14 at 5:14 shucaoshucao ...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...状态机的实现)、实际数据的编码(图像如何被序列化,RGB?CMYK?)等等。 第3点表达了这样一个事实:即使存在两个非常相同的(例如两家公司里的)商务逻辑部署,它们仍然形成了两个拓扑,除非它们...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...状态机的实现)、实际数据的编码(图像如何被序列化,RGB?CMYK?)等等。 第3点表达了这样一个事实:即使存在两个非常相同的(例如两家公司里的)商务逻辑部署,它们仍然形成了两个拓扑,除非它们...
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How can I find out a file's MIME type (Content-Type)?

...d out the MIME type (or is it called "Content-Type"?) of a file in a Linux bash script? 5 Answers ...
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Function Pointers in Java

This may be something common and trivial, but I seem to be having trouble finding a concrete answer. In C# there is a concept of delegates, which relates strongly to the idea of function pointers from C++. Is there a similar functionality in Java? Given that pointers are somewhat absent, what is the...
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Create a submodule repository from a folder and keep its git commit history

I have a web application that explores other web applications in a particular way. It contains some web demos in a demos folder and one of the demo should now have it's own repository. I would like to create a separate repository for this demo application and make it a subpackage submodule fro...
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How to verify multiple method calls with different params

I have the following method that I wish to verify behaviour on. 7 Answers 7 ...
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No visible cause for “Unexpected token ILLEGAL”

... The error When code is parsed by the JavaScript interpreter, it gets broken into pieces called "tokens". When a token cannot be classified into one of the four basic token types, it gets labelled "ILLEGAL" on most implementations, and this error is throw...