大约有 30,000 项符合查询结果（耗时：0.0499秒） [XML]
How to include a quote in a raw Python string
... Python newb here, bit confused, isn't r'what"ever" a parse error? Did you mean r'what"ever'?
– nmr
Aug 14 '14 at 23:07
1
...
How do you log content of a JSON object in Node.js?
... I am trying to do this for the request object but it shows error TypeError: Converting circular structure to JSON Is there any way to limit the depth
– Neil
May 17 '13 at 10:29
...
Is there a way to access method arguments in Ruby?
...
You could then display the name and value of each parameter with
logger.error "Method failed with " + args.map { |arg| "#{arg} = #{eval arg}" }.join(', ')
Note: since this answer was originally written, in current versions of Ruby eval can no longer be called with a symbol. To address this, a...
Rails and PostgreSQL: Role postgres does not exist
...e many people said here, run createuser -s USER, but that gave me the same error. This finally worked for me:
$ sudo su
# su postgres
# createuser -s --username=postgres MYUSERNAME
The createuser -s --username=postgres creates a superuser (-s flag) by connecting as postgres (--username=postgres ...
Is Meyers' implementation of the Singleton pattern thread safe?
Is the following implementation, using lazy initialization, of Singleton (Meyers' Singleton) thread safe?
6 Answers
...
ImportError: No module named Crypto.Cipher
...to run app.py (Python 3.3, PyCrypto 2.6) my virtualenv keeps returning the error listed above. My import statement is just from Crypto.Cipher import AES . I looked for duplicates and you might say that there are some, but I tried the solutions (although most are not even solutions) and nothing work...
SQL Server: Get data for only the past year
...
I got an error message running this query ... "FUNCTION DatabaseName.DATEADD does not exist" Any suggestion?
– Marcello Perri
Jan 17 '19 at 10:43
...
Can't find the 'libpq-fe.h header when trying to install pg gem
...SQL, but the problem is installing the pg gem. It gives me the following error:
41 Answers
...
std::cin input with spaces?
...g, for example, if (!cin.getline(input, sizeof(input))) { ...handle EOF or error... } or something similar, to remind the OP that input operations, in particular, are vulnerable to unexpected behaviour. Other answers need this too.
– Jonathan Leffler
Jun 15 '13...
Lambda capture as const reference?
...eference: [&foo = this->foo] inside of a const function gives me an error stating that the capture itself discards qualifiers. This could be a bug in GCC 5.1, though, I suppose.
– Kyle Strand
Apr 28 '16 at 1:01
...