大约有 16,000 项符合查询结果（耗时：0.0240秒） [XML]
How to join int[] to a character separated string in .NET?
...nting to do this in .NET 2.0 with C#2 can do this:
string.Join(",", Array.ConvertAll<int, String>(ints, Convert.ToString));
I find there are a number of other cases where the use of the Convert.xxx functions is a neater alternative to a lambda, although in C#3 the lambda might help the type...
Stop pip from failing on single package when installing with requirements.txt
...
For Windows:
pip version >=18
import sys
from pip._internal import main as pip_main
def install(package):
pip_main(['install', package])
if __name__ == '__main__':
with open(sys.argv[1]) as f:
for line in f:
install(line)
pip vers...
When does a process get SIGABRT (signal 6)?
...ly works.
abort() is usually called by library functions which detect an internal error or some seriously broken constraint. For example malloc() will call abort() if its internal structures are damaged by a heap overflow.
...
Grant execute permission for a user on all stored procedures in database?
...call grant execute on the new stored procedure:
IF EXISTS (SELECT * FROM sys.database_principals WHERE name = N'asp_net')
DROP USER asp_net
GO
IF EXISTS (SELECT * FROM sys.database_principals
WHERE name = N'db_execproc' AND type = 'R')
DROP ROLE [db_execproc]
GO
--Create a database role....
CR...
What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...xit system call, the kernel stores the value passed to the system call (an int) even after the process dies.
The exit system call is called by the exit() ANSI C function, and indirectly when you do return from main.
the process that called the exiting child process (Bash), often with fork + exec, c...
How to import a module given its name as string?
... can import a list of modules by doing this:
>>> moduleNames = ['sys', 'os', 're', 'unittest']
>>> moduleNames
['sys', 'os', 're', 'unittest']
>>> modules = map(__import__, moduleNames)
Ripped straight from Dive Into Python.
...
Convert pem key to ssh-rsa format
...
ssh-keygen -t rsa -b 2048 -f dummy-ssh-keygen.pem -N '' -C "Test Key"
Converting DER to PEM
If you have an RSA key pair in DER format, you may want to convert it to PEM to allow the format conversion below:
Generation:
openssl genpkey -algorithm RSA -out genpkey-dummy.cer -outform DER -pkeyo...
Safest way to convert float to integer in python?
...s an integer out of the result of math.floor, and this answer shows how to convert a float into an integer. Take the float from math.floor and pipe it through int, problem solved: int(math.floor(2.3))
– JMTyler
Aug 19 '15 at 4:40
...
How do you set your pythonpath in an already-created virtualenv?
...e it in the site-packages directory. E.g.:
cd $(python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())")
echo /some/library/path > some-library.pth
The effect is the same as adding /some/library/path to sys.path, and remain local to the virtualenv setup.
...
How to convert enum value to int?
...d if values are added to the enum. You can use the enum's name() method to convert the enum value to a String an the enum's valueOf() method to create an enum representation from the String again. The following example shows how to convert the enum value to String and back (ValueType is an enum):
V...