大约有 16,000 项符合查询结果（耗时：0.0225秒） [XML]
How do I concatenate const/literal strings in C?
...r "strings".
You can use the strcat function, which appends the string pointed to by src to the end of the string pointed to by dest:
char *strcat(char *dest, const char *src);
Here is an example from cplusplus.com:
char str[80];
strcpy(str, "these ");
strcat(str, "strings ");
strcat(str, "are...
Incrementing a date in JavaScript
...
The easiest way is to convert to milliseconds and add 1000*60*60*24 milliseconds e.g.:
var tomorrow = new Date(today.getTime()+1000*60*60*24);
share
|
...
Generate array of all letters and digits
...1.8 and 1.9
or
(0...36).map{ |i| i.to_s 36 }
(the Integer#to_s method converts a number to a string representing it in a desired numeral system)
share
|
improve this answer
|
...
Database Structure for Tree Data Structure
...t:
https://blogs.msdn.microsoft.com/mvpawardprogram/2012/06/25/hierarchies-convert-adjacency-list-to-nested-sets
There are other models as well, including materialized path and nested sets:
http://communities.bmc.com/communities/docs/DOC-9902
Joe Celko has written a book on this subject, which is ...
Rename Pandas DataFrame Index
...s and index are the same type of object (Index or MultiIndex), and you can interchange the two via transpose.
This is a little bit confusing since the index names have a similar meaning to columns, so here are some more examples:
In [1]: df = pd.DataFrame([[1, 2, 3], [4, 5 ,6]], columns=list('ABC'...
How to Implement Custom Table View Section Headers and Footers with Storyboard
...
@Foriger - Not at this point. It's an odd omission in storyboard table views, but it is what it is. Use that kludgy hack with prototype cells if it you want, but personally, I just put up with the annoyance of the NIBs for the header/footer views.
...
public static const in TypeScript
...are two options
Make individual fields "final"
The following decorator converts both, annotated static and non-static fields to "getter-only-properties".
Note: If an instance-variable with no initial value is annotated @final, then the first assigned value (no matter when) will be the final one...
How to repeat a string a variable number of times in C++?
... to repeat a string n times:
#include <sstream>
std::string repeat(int n) {
std::ostringstream os;
for(int i = 0; i < n; i++)
os << "repeat";
return os.str();
}
Depending on the implementation, this may be slightly more efficient than simply concatenating the s...
Paging with Oracle
... stored proc. If I have "Page Number" and "Number of records per page" as integer values I can pass as parameters, what would be the best way to get back just that particular section. Say, if I pass 10 as a page number, and 120 as number of pages, from the select statement it would give me the 188...
What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
...void doSomething(MyClass);
}
MyNamespace::MyClass obj; // global object
int main()
{
doSomething(obj); // Works Fine - MyNamespace::doSomething() is called.
}
In the above example there is neither a using-declaration nor a using-directive but still the compiler correctly identifies the unqu...