大约有 30,000 项符合查询结果(耗时:0.1211秒) [XML]

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logger configuration to log to file and print to stdout

...ed in this function. The whole setup can therefore be done with a single call like this: import logging logging.basicConfig( level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s", handlers=[ logging.FileHandler("debug.log"), logging.StreamHandler() ...
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Python vs Cpython

...lementation. It is the implementation you download from Python.org. People call it CPython to distinguish it from other, later, Python implementations, and to distinguish the implementation of the language engine from the Python programming language itself. The latter part is where your confusion co...
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How do you easily horizontally center a using CSS? [duplicate]

...nter a <div> block element on a page and have it set to a minimum width. What is the simplest way to do this? I want the <div> element to be inline with rest of my page. I'll try to draw an example: ...
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List of Rails Model Types

...ting a migration etc car:references comes in very handy for creating a car_id foreign key. – BKSpurgeon Jul 25 '16 at 22:46 1 ...
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Fill SVG path element with a background-image

... do it by making the background into a pattern: <defs> <pattern id="img1" patternUnits="userSpaceOnUse" width="100" height="100"> <image href="wall.jpg" x="0" y="0" width="100" height="100" /> </pattern> </defs> Adjust the width and height according to your ima...
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How to convert an int to string in C?

...rst you need to find out sufficient size. snprintf tells you length if you call it with NULL, 0 as first parameters: snprintf( NULL, 0, "%d", x ); Allocate one character more for null-terminator. #include <stdio.h> #include <stdlib.h> int x = -42; int length = snprintf( NULL, 0, "%...
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Understanding Node.js modules: multiple requires return the same object?

...eive the same instance of A. From the node.js documentation: ... every call to require('foo') will get exactly the same object returned, if it would resolve to the same file. The situation is different when a.js, b.js and app.js are in different npm modules. For example: [APP] --> [A], ...
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How can i query for null values in entity framework?

... microsoft... really?!?!? In version 4.1?!?! +1 – David Aug 1 '11 at 18:00 1 That Linq-To-SQL wor...
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How does this program work?

...ng arguments. and from 6.5.2.2/6, If the expression that denotes the called function has a type that does not include a prototype, the integer promotions are performed on each argument, and arguments that have type float are promoted to double. These are called the default argument promotions....
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What exactly is metaprogramming?

...e new programs such as eval("x" + i). DoSomething() would affect an object called x1 when i is 1 and x2 when i is 2. Finally, another common form of metaprogramming is when the program can change itself in non-trivial fashions. LISP is well known for this and is something Paul Graham championed abo...