大约有 40,000 项符合查询结果(耗时:0.0555秒) [XML]

https://stackoverflow.com/ques... 

MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)

...ands. The recommended solution is to drop this anonymous user (this is usually a good thing to do anyways). Below edits are mostly irrelevant to the main question. These are only meant to answer some questions raised in other comments within this thread. Edit 1 Authenticating as 'bill'@'%' thr...
https://stackoverflow.com/ques... 

sql “LIKE” equivalent in django query

...s. I have made the lookup into a Django-like-lookup application. After installing it the __like lookup with the % and _ wildcards will be enabled. All the necessary code in the application is: from django.db.models import Lookup from django.db.models.fields import Field @Field.register_lookup cl...
https://stackoverflow.com/ques... 

What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?

... = "function-name"; appeared, where function-name is the name of the lexically-enclosing function. This name is the unadorned name of the function. Note that it is not a macro and it has no special meaning during preprocessing. __func__ was added to C++ in C++11, where it is specified as containi...
https://stackoverflow.com/ques... 

Are there legitimate uses for JavaScript's “with” statement?

...ous as to how I might make effective use of with , while avoiding its pitfalls. 31 Answers ...
https://stackoverflow.com/ques... 

Is inline assembly language slower than native C++ code?

... Yes, most times. First of all you start from wrong assumption that a low-level language (assembly in this case) will always produce faster code than high-level language (C++ and C in this case). It's not true. Is C code always faster than Java code? N...
https://stackoverflow.com/ques... 

Is there a difference between “==” and “is”?

... a True In your case, the second test only works because Python caches small integer objects, which is an implementation detail. For larger integers, this does not work: >>> 1000 is 10**3 False >>> 1000 == 10**3 True The same holds true for string literals: >>> "a" i...
https://stackoverflow.com/ques... 

How to use base class's constructors and assignment operator in C++?

... You can explicitly call constructors and assignment operators: class Base { //... public: Base(const Base&) { /*...*/ } Base& operator=(const Base&) { /*...*/ } }; class Derived : public Base { int additional_; public: ...
https://stackoverflow.com/ques... 

What is the difference between a field and a property?

...sed via get and set properties. Properties provide a level of abstraction allowing you to change the fields while not affecting the external way they are accessed by the things that use your class. public class MyClass { // this is a field. It is private to your class and stores the actual da...
https://stackoverflow.com/ques... 

Class method decorator with self arguments?

... @wraps(f) def wrapped(self, *f_args, **f_kwargs): if callable(_lambda) and search(pattern, (_lambda(self) or '')): f(self, *f_args, **f_kwargs) return wrapped return wrapper class MyTest(object): def __init__(self): self.name = 'foo' ...
https://stackoverflow.com/ques... 

Extract substring in Bash

...o-based) and "5" is the length. Also, +1 for @gontard 's link that lays it all out! – Doktor J Sep 12 '14 at 17:32 ...