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xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false...
...e\xtree(1775): 参见对正在编译的函数 模板 实例化“std::pair<_Ty1,_Ty2> std::_Tree<_Traits>::_Insert_nohint<std::pair<const _Kty,_Ty>&,_Nodety>(bool,_Valty,_Nodety)”的引用
1> with
1> [
1> _Ty1=std::_Tree_iterator<std::_Tree_val<std::_Tree_simple_t...
How To Check If A Key in **kwargs Exists?
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Thanks for the extra explanation! Always good for python newcomers to get some background info and further examples of what is possible and what isn't. In that spirit: I think, kwargs.get("errormessage", 17) might return its value o...
bash: pip: command not found
...xt step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error "bash: pip: command not found".
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Best practices for adding .gitignore file for Python projects? [closed]
...e of my default settings, and one thing I realized I don't have a standard for is .gitignore files. There's a great thread showing a good .gitignore for Visual Studio projects , but I don't see many recommendations for Python and related tools (PyGTK, Django).
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Escape quotes in JavaScript
...ed that, and it is still screwing up. This has got to be a simple WTF but for the life of me, I can't see it.
– Matt Dawdy
Jan 5 '10 at 4:35
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Escape Character in SQL Server
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To escape ' you simly need to put another before: ''
As the second answer shows it's possible to escape single quote like this:
select 'it''s escaped'
result will be
it's escaped
If you're concatenating SQL into a VARCHAR to execute (i.e. dynamic SQL), then I'd ...
“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
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Just convert numbers from int64 (from numpy) to int.
For example, if variable x is a int64:
int(x)
If is array of int64:
map(int, x)
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Reactjs convert html string to jsx
...lt;td dangerouslySetInnerHTML={{__html: this.state.actions}} />
React forces this intentionally-cumbersome syntax so that you don't accidentally render text as HTML and introduce XSS bugs.
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?
Why does the sizeof operator return a size larger for a structure than the total sizes of the structure's members?
12 Ans...
Replacing Spaces with Underscores
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This is part of my code which makes spaces into underscores for naming my files:
$file = basename($_FILES['upload']['name']);
$file = str_replace(' ','_',$file);
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