大约有 45,000 项符合查询结果（耗时：0.0296秒） [XML]
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
jne wrong_processor
cmp ecx, 'letn'
jne wrong_processor
// now we have an Intel-Processor:
// get CPU feature flag..
mov eax,1
cpuid
mov wCPU_SerialNo_64_93,eax //处理器序列号一共96位，最高32位就是处理器签名
and edx,PSN_FLAG ...
Finding index of character in Swift String
... Any other indices can be created using successor or predecessor methods.
Now to help us with indices, there is a set of methods (functions in Swift 1.x):
Swift 4.x
let text = "abc"
let index2 = text.index(text.startIndex, offsetBy: 2) //will call succ 2 times
let lastChar: Character = text[index...
How to map and remove nil values in Ruby
...
Ruby 2.7+
There is now!
Ruby 2.7 is introducing filter_map for this exact purpose. It's idiomatic and performant, and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.ev...
file_put_contents - failed to open stream: Permission denied
...
There is now a troubleshooting checklist for this kind of problems : stackoverflow.com/questions/36577020/…
– Vic Seedoubleyew
Aug 20 '16 at 9:26
...
Using javadoc for Python documentation [closed]
...
Have a look at the reStructuredText (also known as "reST") format, which is a plaintext/docstring markup format, and probably the most popular in the Python world. And you should certainly look at Sphinx, a tool to generate documentation from reStructuredText (used fo...
Why can't I define a default constructor for a struct in .NET?
...n C# is "the default value for any type can't rely on any initialization". Now they could have allowed parameterless constructors to be defined, but then not required that constructor to be executed in all cases - but that would have led to more confusion. (Or at least, so I believe the argument goe...
Binding a WPF ComboBox to a custom list
...k, although with some inefficiencies, but advanced features may encounter known bugs. Consider using a derived class to avoid these problems.
Edit2 (.NET 4.5): The content of the DropDownList can be based on ToString() and not of DisplayMemberPath, while DisplayMemberPath specifies the member for ...
Generating random whole numbers in JavaScript in a specific range?
... have an interval like this:
[0 .................................... 1)
Now, we'd like a number between min (inclusive) and max (exclusive):
[0 .................................... 1)
[min .................................. max)
We can use the Math.random to get the correspondent in the [min, ...
Convert object string to JSON
...TML are valid):
<div data-object='{"hello":"world"}'></div>
Now, you can just use JSON.parse (or jQuery's $.parseJSON).
var str = '{"hello":"world"}';
var obj = JSON.parse(str);
share
|
...
Are HLists nothing more than a convoluted way of writing tuples?
...tions for HLists is abstracting over arity. Arity is typically statically known at any given use site of an abstraction, but varies from site to site. Take this, from shapeless's examples,
def flatten[T <: Product, L <: HList](t : T)
(implicit hl : HListerAux[T, L], flatten : Flatten[L]) : ...