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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...mple for this is the situation where you want to gain a handler to a file, read data from the file and the close the file handler.
有一些任务，可能事先需要设置，事后做清理工作。对于这种场景，Python的with语句提供了一种非常方便的处理方式。一个很好...
IEnumerable vs List - What to Use? How do they work?
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When I've read the answers about: IEnumerable<T> vs IQueryable<T> I saw the analogical explanation, so that IEnumerable automatically forces the runtime to use LINQ to Objects to query the collection. So I'm confused betwee...
Download a file from NodeJS Server using Express
...);
res.setHeader('Content-type', mimetype);
var filestream = fs.createReadStream(file);
filestream.pipe(res);
});
You can set the header value to whatever you like. In this case, I am using a mime-type library - node-mime, to check what the mime-type of the file is.
Another important thing...
How can I get a file's size in C? [duplicate]
...); // seek back to beginning of file
// proceed with allocating memory and reading the file
Linux/POSIX:
You can use stat (if you know the filename), or fstat (if you have the file descriptor).
Here is an example for stat:
#include <sys/stat.h>
struct stat st;
stat(filename, &st);
siz...
Remove ALL styling/formatting from hyperlinks
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This isn't what he asked. Re-read the question. He already knows this.
– david
Jan 19 '12 at 1:01
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u'\ufeff' in Python string
...automatically handle the encoding.
Without it, the BOM is included in the read result:
>>> f = open('file', mode='r')
>>> f.read()
'\ufefftest'
Giving the correct encoding, the BOM is omitted in the result:
>>> f = open('file', mode='r', encoding='utf-8-sig')
>>...
Difference between JOIN and INNER JOIN
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They are functionally equivalent, but INNER JOIN can be a bit clearer to read, especially if the query has other join types (i.e. LEFT or RIGHT or CROSS) included in it.
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Entity Framework 4 / POCO - Where to start? [closed]
...s, but I can't find them. These articles are well written and I'd like to read more from this author.
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return statement vs exit() in main()
...in() ? Personally I favor the return statements because I feel it's like reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return seems like a better choice than exit() .
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Can I write into the console in a unit test? If yes, why doesn't the console window open?
... to the standard output handle for the running process. Similarly, Console.Read reads input from whatever is hooked up to the standard input.
When you run a unit test through Visual Studio 2010, standard output is redirected by the test harness and stored as part of the test output. You can see th...