大约有 30,000 项符合查询结果(耗时:0.0255秒) [XML]
How do I handle newlines in JSON?
...\na"'])[1].charCodeAt(); that will show 10 - which was "Linefeed" the last time I checked. --- BTW: Stop screaming!
– BlaM
Nov 11 '15 at 7:25
...
How do I format a number with commas in T-SQL?
...years I've used SQL Server, this issue has never come up since most of the time I would be doing formatting at the presentation layer, but in this case the T-SQL result in SSMS is the presentation.
...
Most common C# bitwise operations on enums
... the idiom is to use bitwise and with negation:
flags &= ~0x04;
Sometimes you have an offset that identifies your bit, and then the idiom is to use these combined with left-shift:
flags |= 1 << offset;
flags &= ~(1 << offset);
...
Pandas: Looking up the list of sheets in an excel file
...openpyxl and other such libraries and all of them seem to take exponential time as the file size increase as it reads the entire file. The other solutions mentioned above where they used 'on_demand' did not work for me. If you just want to get the sheet names initially, the following function works ...
How do you append to an already existing string?
I want append to a string so that every time I loop over it will add say "test" to the string.
7 Answers
...
How to try convert a string to a Guid [duplicate]
...
@NickN. This post was from 2008, at the time there was no Guid.TryParse
– Brian Rudolph
Mar 31 '19 at 22:26
1
...
Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
... It is not that easy. Whether %z is supported or not depends on the runtime, not the compiler. Using __GNUC__ is therefore a bit of a problem, if you mix GCC/mingw with msvcrt (and without using mingw's augmented printf).
– jørgensen
Nov 15 '13 at 6:06
...
What is an idiomatic way of representing enums in Go?
...ign choice, compromise between safety and performance. Consider "safe" run time bound checks every time when touching a Base typed value. Or how should one define 'overflow' behavior of Base value for arithmetics and for ++ and --? Etc.
– zzzz
Jan 20 '13 at 17:...
How to decorate a class?
...s, which it can then rewrite before the class is created. You can, at that time, sub out the constructor for a new one.
Example:
def substitute_init(self, id, *args, **kwargs):
pass
class FooMeta(type):
def __new__(cls, name, bases, attrs):
attrs['__init__'] = substitute_init
...
PHP Get Site URL Protocol - http vs https
...
While this works under most situations, there have been times where there was a configuration SNAFU and $_SERVER['HTTPS'] was actually set to "off". Your code would still regard that as "passing" the test, so should be amended to allow for that particular setting.
...
