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C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...Excel 文件，有时候打开EXCEL文件就要
void CloseExcelFile(BOOL if_save = FALSE);
//另存为一个EXCEL文件
void SaveasXSLFile(const CString &xls_file);
///取得打开文件的名称
CString GetOpenFileName();
///取得打开sheet的名称
CString GetLoadSheetName();
/...
What does extern inline do?
...ll enforce your function getting inlined. This is obviously a compiler-specific extension only for VC++.
– untitled8468927
Jan 17 '14 at 12:12
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Accessing class variables from a list comprehension in the class definition
...ble. Names are resolved in
the innermost enclosing function scope. If a class definition
occurs in a chain of nested scopes, the resolution process skips
class definitions.
and in the class compound statement documentation:
The class’s suite is then executed in a new exec...
Django filter queryset __in for *every* item in list
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This annotation solution seems wrong. What if there are three tags possible (lets call the additional one for t3, and a photo has the tags t2 and t3. Then this photo will still match the given query.
– beruic
Apr 30 '18 at 11:53
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What is the most efficient way of finding all the factors of a number in Python?
...st.__add__,
([i, n//i] for i in range(1, int(n**0.5) + 1) if n % i == 0)))
This will return all of the factors, very quickly, of a number n.
Why square root as the upper limit?
sqrt(x) * sqrt(x) = x. So if the two factors are the same, they're both the square root. If you make o...
Android – Listen For Incoming SMS Messages
...ot correct. Any app can still get the SMS_RECEIVED broadcast in 4.4+, and, now that that broadcast cannot be aborted, it is more certain than in previous versions.
– Mike M.
Jul 26 '16 at 13:30
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Use cases for NoSQL [closed]
...
I have been using NoSQL DBs for a while now, and this is my contribute to the topic:
A great use case for a NoSQL database is an application for statistics and / or reports generation,
expecially when data is provided from a third party source.
In a situation lik...
How to print a int64_t type in C
...
And, if using C++ on Linux, be sure to #define __STDC_FORMAT_MACROS before including inttypes.h.
– csl
Nov 28 '14 at 8:50
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Underscore vs Double underscore with variables and methods [duplicate]
...urther since there are a lot of other people who need help I was wondering if somebody could elaborate the differences further.
...
How to get instance variables in Python?
...in Python to get an array of all a class' instance variables? For example, if I have this code:
10 Answers
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