大约有 19,000 项符合查询结果（耗时：0.0296秒） [XML]
How to use subprocess popen Python
... @Lukas Graf Since it says so in the code. @Alex shell=True is considered a security risk when used to process untrusted data. A clever attacker can modify the input to access arbitrary system commands. E.g. by inputting filename.swf; rm -rf / for the value of filename. However, this is only...
sqlalchemy IS NOT NULL select
...
The other answer is the preferred answer now; it also avoids many IDEs including PyCharm from generating warnings.
– Antti Haapala
Oct 6 '16 at 7:21
...
Python: Convert timedelta to int in a dataframe
...
It's the timedelta64 division operator. Dividing td by a 1 day time delta is results in the (possibly fractional) number of days represented in td. Not required in this case but it's really useful if say you want to work out how many 15 minute intervals td represents
...
Regular expression to return text between parenthesis
All I need is the contents inside the parenthesis.
6 Answers
6
...
What do you call the -> operator in Ruby?
...
@rdurand Did you make the edit with summary "Stabby lambdas cannot accept arguments in Ruby 1.9"? This is not accurate, at least for 1.9.3 - args are allowed.
– Kelvin
Mar 15 '17 at 22:27
...
How do I activate C++ 11 in CMake?
..._cxx11)
if (CMAKE_VERSION VERSION_LESS "3.1")
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
endif ()
else ()
set (CMAKE_CXX_STANDARD 11)
endif ()
endmacro(use_cxx11)
The macro only supports GCC right now, but it should be ...
Show hidden div on ng-click within ng-repeat
...</p>
</div>
</li>
</ul>
Here's the fiddle: http://jsfiddle.net/asmKj/
You can also use ng-class to toggle a class:
<div class="procedure-details" ng-class="{ 'hidden': ! showDetails }">
I like this more, since it allows you to do some nice transitio...
Specifying colClasses in the read.csv
...
I know OP asked about the utils::read.csv function, but let me provide an answer for these that come here searching how to do it using readr::read_csv from the tidyverse.
read_csv ("test.csv", col_names=FALSE, col_types = cols (.default = "c", time = "i"))
This should set the default type...
How can I determine if a String is non-null and not only whitespace in Groovy?
...swered Feb 7 '12 at 0:16
doelleridoelleri
16.7k55 gold badges5454 silver badges5959 bronze badges
...
What does iterator->second mean?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...