大约有 3,516 项符合查询结果（耗时：0.0174秒） [XML]
What Computer Science concepts should I know? [closed]
...t Math.
I suggest that you look into discrete mathematics. It has a wide range of useful problems starting with logical proofs which help you write conditions in code. Graph theory and combinatorics also help with complex problem resolution and algorithm optimization.
While we are on the subject...
Are C++ enums signed or unsigned?
... For example:
enum Fruit
{
Apple = 0,
Banana,
Pineapple,
Orange,
Kumquat
};
enum Fruit fruitVariable = Banana; // Okay, Banana is a member of the Fruit enum
fruitVariable = 1; // Error, 1 is not a member of enum Fruit even though it has the same value as banana.
...
Html.RenderPartial giving me strange overload error?
...2fstackoverflow.com%2fquestions%2f5435893%2fhtml-renderpartial-giving-me-strange-overload-error%23new-answer', 'question_page');
}
);
Post as a guest
Name
...
What is the size of an enum in C?
... I've worked with MacOS C++ compilers that do exploit the limited range of values in an enum to store them in smaller types. Can't remember if it was Metrowerks Codewarrior or XCode. This is within the C++ standard. You cannot assume sizeof(MyEnum) == sizeof(int) in general.
...
Fluent and Query Expression — Is there any benefit(s) of one over other?
... needs. Query syntax comes into its own when you want to leverage multiple range variables. This happens in three situations:
When using the let keyword
When you have multiple generators (from clauses)
When doing joins
Here's an example (from the LINQPad samples):
string[] fullNames = { "Anne W...
How to index into a dictionary?
...== n:
return key
raise IndexError("dictionary index out of range")
(*CPython 3.6 already included ordered dicts, but this was only an implementation detail. The language specification includes ordered dicts from 3.7 onwards.)
...
Correctly determine if date string is a valid date in that format
...
This validates a whole range of valid date formats not just yyyy-mm-dd.
– EWit
Jun 25 '14 at 6:36
10
...
Use underscore inside Angular controllers
...unit tests
.constant('_', window._)
// use in views, ng-repeat="x in _.range(3)"
.run(function ($rootScope) {
$rootScope._ = window._;
});
See https://github.com/angular/angular.js/wiki/Understanding-Dependency-Injection about halfway for some more info on run.
...
如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升
...here you have class A at the low end of some feature x, class B in the mid-range of feature x, and A again at the high end). One disadvantage is that they don’t support online learning, so you have to rebuild your tree when new examples come on. Another disadvantage is that they easily overfit...
如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升
...here you have class A at the low end of some feature x, class B in the mid-range of feature x, and A again at the high end). One disadvantage is that they don’t support online learning, so you have to rebuild your tree when new examples come on. Another disadvantage is that they easily overfit...