大约有 30,000 项符合查询结果（耗时：0.0512秒） [XML]
Instance attribute attribute_name defined outside __init__
...self.name = type(None)()
# ...
As None will cause type not match error.
share
|
improve this answer
|
follow
|
...
Get the IP address of the remote host
...e job here and it took me more then 20 minutes to see whats going on build error. I just copied the code and created a class for it, when compiling it was not showing the methods, when I did use "go to definition" on VS it took me to my class, and I keep not understanding whats going on, until I fou...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...
Floating point arithmetic errors are implementation designed. As far as I know, they are consistent for a certain platform but can differ e.g. between different mobile phones and between PC architectures. Although there are extra 'guard bits' sometime...
How can I save my secret keys and password securely in my version control system?
...s to put them under source - in a properties file of some sort. This is an error-prone process, and is especially complicated for open source apps which often have to maintain separate (and private) branches with app-specific configurations.
A better solution is to use environment variables, an...
Why is whitespace sometimes needed around metacharacters?
...run it in a shell it doesn't start a fork bomb, but it just gives a syntax error.
5 Answers
...
Use RSA private key to generate public key?
... as evidently the output of that is a pem format public key. So I got this error: "Key is invalid. It must begin with 'ssh-rsa' or 'ssh-dss'. Check that you're copying the public half of the key". However ssh-keygen -y [-f input_keyfile] generates the correct format that Github takes.
...
Why should I avoid multiple inheritance in C++?
...(a node has ONE parent), not as a graph.
More about the Diamond (edit 2017-05-03)
The real problem with the Diamond of Dread in C++ (assuming the design is sound - have your code reviewed!), is that you need to make a choice:
Is it desirable for the class A to exist twice in your layout, and what d...
How to return a file using Web API?
...oon as the variable goes out of scope, .NET will dispose it and you'll get error messages about the underlying connection being closed.
– Brandon Montgomery
Sep 26 '12 at 21:44
48
...
How to reuse an ostringstream?
...{
d_str.clear();
d_str.seekp(0); // Or else you'll get an error with this seek
d_str << value << std::ends;
StrFunc(d_str.str().c_str()); // And your string will be empty
}
};
...
for each loop in Objective-C for accessing NSMutable dictionary
....
– Brody Robertson
Jun 3 '13 at 20:05
...