大约有 15,000 项符合查询结果（耗时：0.0324秒） [XML]
Why don't structs support inheritance?
I know that structs in .NET do not support inheritance, but its not exactly clear why they are limited in this way.
10 An...
Why is SQL Server 2008 Management Studio Intellisense not working?
...ich you can download here
http://www.microsoft.com/download/en/details.aspx?id=26727
32 Bit:
SQLServer2008R2SP1-KB2528583-x86-ENU.exe
64 Bit:
SQLServer2008R2SP1-KB2528583-x64-ENU.exe
I have applied this SP1 and now my intellisense works again. I hope this helps! (:
...
Suppress Scientific Notation in Numpy When Creating Array From Nested List
...ic's answer below. I used np.set_printoptions(formatter={'all':lambda x: str(x)})
– nurp
Jul 27 '18 at 13:12
...
Pass a JavaScript function as parameter
How do I pass a function as a parameter without the function executing in the "parent" function or using eval() ? (Since I've read that it's insecure.)
...
Is it safe to push_back an element from the same vector?
...tandard:
1) Parameters taken by const reference can be changed during execution
of the function
Examples:
Given std::vector v:
v.insert(v.begin(), v[2]);
v[2] can be changed by moving elements of vector
The proposed resolution was that this was not a defect:
vector::i...
How to find the length of a string in R
...
See ?nchar. For example:
> nchar("foo")
[1] 3
> set.seed(10)
> strn <- paste(sample(LETTERS, 10), collapse = "")
> strn
[1] "NHKPBEFTLY"
> nchar(strn)
[1] 10
...
How do I do a case-insensitive string comparison?
...
That doesn’t always work. Consider for exanmple that there are two Greek sigmas, one only used at the end. The string Σίσυφος (“Sísyphos”, or better “Síſyphos”) has all three: uppercase at the front, lowercase final at the end, and lowercase nonf...
How to avoid “RuntimeError: dictionary changed size during iteration” error?
...
In Python 2.x calling keys makes a copy of the key that you can iterate over while modifying the dict:
for i in d.keys():
Note that this doesn't work in Python 3.x because keys returns an iterator instead of a list.
Another way is to...
How can I add a custom HTTP header to ajax request with js or jQuery?
...st then just add the headers property:
// Request with custom header
$.ajax({
url: 'foo/bar',
headers: { 'x-my-custom-header': 'some value' }
});
If you want to add a default header (or set of headers) to every request then use $.ajaxSetup():
$.ajaxSetup({
headers: { 'x-my-custom-hea...
How to get the index of an item in a list in a single step?
How can I find the index of an item in a list without looping through it?
7 Answers
7
...