大约有 16,000 项符合查询结果(耗时:0.0256秒) [XML]
Exception handling in R [closed]
... "Not Sure what to with a negative value",
call = sys.call(),
# and include the offending parameter in the error object
x=x))
# raise the error
stop(negative_value_error)
}
cat("Returning from low_lev...
Change default app.config at runtime
... before, but was unaware of how to reset the internal configuration flags
Converted to C++/CLI for those interested
/// <summary>
/// Remove cached values from ClientConfigPaths.
/// Call this after changing path to App.Config.
/// </summary>
void ResetConfigMechanism()
{
BindingFl...
Send a file via HTTP POST with C#
....ASCIIEncoding.ASCII.GetBytes(sAuthorization);
string returnValue = System.Convert.ToBase64String(toEncodeAsBytes);
wr.Headers.Add("Authorization: Basic " + returnValue); //AUTHENTIFICATION END
Stream rs = wr.GetRequestStream();
string formdataTemplate = "Content-Disposition: form-data; name=\"{0}...
Are there any side effects of returning from inside a using() statement?
...Have a look at this
Understanding the 'using' statement in C#
The CLR converts your code into MSIL.
And the using statement gets
translated into a try and finally
block. This is how the using statement
is represented in IL. A using
statement is translated into three
parts: acquisiti...
range() for floats
...st value is 0.9999999999999999. A practical improvement would be while x + sys.float_info.epsilon < y: although even this can probably fail with large numbers.
– Akseli Palén
Mar 18 '16 at 17:17
...
What is the difference between bottom-up and top-down?
...nology until proper references can be found in the literature. I have also converted this answer to a community wiki. Please prefer academic sources. List of references: {Web: 1,2} {Literature: 5}
Recap
Dynamic programming is all about ordering your computations in a way that avoids recalculating...
How do I install Python packages on Windows?
...
@delinco m **module-name**: Searches **sys.path** for the named module and runs the corresponding **.py** file as a script..
– phil294
Jun 16 '18 at 11:52
...
How do you use the “WITH” clause in MySQL?
I am converting all my SQL Server queries to MySQL and my queries that have WITH in them are all failing. Here's an example:
...
How to remove trailing whitespaces with sed?
... sed v4.4):
sed -Ei 's/[ \t]+$//' "$1"
real 0m0,335s
user 0m0,133s
sys 0m0,193s
sed -Ei 's/[[:space:]]+$//' "$1"
rea
How can I force division to be floating point? Division keeps rounding down to 0?
... last):
File "<stdin>", line 1, in <module>
TypeError: can't convert complex to float
It doesn't make much sense to me to purposefully make your code more brittle.
You can also run Python with the -Qnew flag, but this has the downside of executing all modules with the new Python 3 beh...
