大约有 47,000 项符合查询结果(耗时:0.0964秒) [XML]

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assign multiple variables to the sam>mem> value in Javascript

... Nothing stops you from doing moveUp = moveDown = moveLeft = moveRight = mouseDown = touchDown = false; Check this example var a, b, c; a = b = c = 10; console.log(a + b + c) ...
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Is it possible to roll back CREATE TABLE and ALTER TABLE statem>mem>nts in major SQL databases?

I am working on a program that issues DDL. I would like to know whether CREATE TABLE and similar DDL can be rolled back in ...
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What's the difference of “./configure” option “--build”, “--host” and “--target”?

...ript ./configure accepts 3 options --build , --host and --target . I'm confusing their roles. What's the difference and semantics of them? ...
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Inheritance and Overriding __init__ in python

... reading 'Dive Into Python' and in the chapter on classes it gives this example: 5 Answers ...
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SQL, Postgres OIDs, What are they and why are they useful?

I am looking at som>mem> PostgreSQL table creation and I stumbled upon this: 4 Answers 4 ...
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Purpose of #!/usr/bin/python3

I have noticed this in a couple of scripting languages, but in this example, I am using python. In many tutorials, they would start with #!/usr/bin/python3 on the first line. I don't understand why we have this. ...
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How to create a density plot in matplotlib?

... Sven has shown how to use the class gaussian_kde from Scipy, but you will notice that it doesn't look quite like what you generated with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the functio...
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How does a garbage collector avoid an infinite loop here?

Consider the following C# program, I submitted it on codegolf as an answer to create a loop without looping: 3 Answers ...
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How to exclude certain directories/files from git grep search

...aths/directories/files when searching a git repository using git grep ? Som>mem>thing similar to the --exclude option in the normal grep command? ...
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How Should I Declare Foreign Key Relationships Using Code First Entity Fram>mem>work (4.1) in MVC3?

...gn key relationships and other constraints using code first EF 4.1 without much luck. Basically I am building the data model in code and using MVC3 to query that model. Everything works via MVC which is great (kudos to Microsoft!) but now I want it NOT to work because I need to have data model const...