大约有 40,000 项符合查询结果（耗时：0.0317秒） [XML]
Operator overloading : member function vs. non-member function?
... overloaded member function for expressions like s1 + 10.0.
To solve this ordering problem, we define operator overloaded function as friend IF it needs to access private members. Make it friend ONLY when it needs to access private members. Otherwise simply make it non-friend non-member function to...
Get exception description and stack trace which caused an exception, all as a string
...
Let's create a decently complicated stacktrace, in order to demonstrate that we get the full stacktrace:
def raise_error():
raise RuntimeError('something bad happened!')
def do_something_that_might_error():
raise_error()
Logging the full stacktrace
A best practic...
Convert string with comma to integer
...application, when converting a currency amount that the user has input, in order to deal with only integers inside the application: for instance, converting dollars and cents to cents. This method will avoid any rounding errors that might crop up unexpectedly when dealing with floating-point numbers...
Why does the 260 character path length limit exist in Windows?
... is defined as 260 characters. A local path is structured in the following order: drive letter, colon, backslash, name components separated by backslashes, and a terminating null character. For example, the maximum path on drive D is "D:\some 256-character path string<NUL>" where "<NUL>"...
How to sort with lambda in Python
... ^^^^
On Python 2.x, the sorted function takes its arguments in this order:
sorted(iterable, cmp=None, key=None, reverse=False)
so without the key=, the function you pass in will be considered a cmp function which takes 2 arguments.
...
What are the basic rules and idioms for operator overloading?
Note: The answers were given in a specific order , but since many users sort answers according to votes, rather than the time they were given, here's an index of the answers in the order in which they make most sense:
...
Good MapReduce examples [closed]
... for a million records would take a while, and this would only increase in order of magnitute when the complexity of the query increases.
Map Reduce provides a cluster based implementation where data is processed in a distributed manner
Here is a wikipedia article explaining what map-reduce is a...
Remove Select arrow on IE
... browser, it is easy to set the same background image for the drop-down in order to have the same arrow.
To do so, you have to reset the browser's default style for the select tag and set new background rules (like suggested before).
select {
/* you should keep these firsts rules in place to m...
What is the difference between the HashMap and Map objects in Java?
...eed to return HashMap.
The method should return map key's in insertion order - Need to change return type HashMap to LinkedHashMap.
The method should return map key's in sorted order - Need to change return type LinkedHashMap to TreeMap.
If your method returns specific classes instea...
Multiple inputs with same name through POST in php
... Question coming to my mind here is: whether the field will go in random order inside the array? or will they be in order in which they are laid out in form (even if some fields are left empty)?
– rajeev
Jan 16 '13 at 15:59
...