大约有 43,000 项符合查询结果（耗时：0.0439秒） [XML]
SQL variable to hold list of integers
I'm trying to debug someone else's SQL reports and have placed the underlying reports query into a query windows of SQL 2012.
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Try catch statements in C
... in C. However, is there a way to "simulate" them?
Sure, there is assert and other tricks but nothing like try/catch, that also catch the raised exception. Thank you
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Tuples( or arrays ) as Dictionary keys in C#
...alues to one string. I tried using arrays as keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would probably not be very pretty to look at, though it is how I would do it in javascript.
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foreach vs someList.ForEach(){}
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There is one important, and useful, distinction between the two.
Because .ForEach uses a for loop to iterate the collection, this is valid (edit: prior to .net 4.5 - the implementation changed and they both throw):
someList.ForEach(x => { if(x....
How to test equality of Swift enums with associated values
...from Swift 4.1 (due to SE-0185, Swift also supports synthesizing Equatable and Hashable for enums with associated values.
So if you're on Swift 4.1 or newer, the following will automatically synthesize the necessary methods such that XCTAssert(t1 == t2) works. The key is to add the Equatable protoc...
Difference between virtual and abstract methods [duplicate]
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Virtual methods have an implementation and provide the derived classes with the option of overriding it. Abstract methods do not provide an implementation and force the derived classes to override the method.
So, abstract methods have no actual code in them, and...
what is “strict mode” and how is it used?
...alue is not coerced to an object. A this value of null or undefined is not converted to the global object and primitive values are not converted to wrapper objects. The this value passed via a function call (including calls made using Function.prototype.apply and Function.prototype.call) do not coer...
How to forward declare a template class in namespace std?
and used that function in my main. I get errors. Of course, I know that there are more template params for std::list (allocator I think). But, that is beside the point. Do I have to know the full template declaration of a template class to be able to forward declare it?
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Readonly Properties in Objective-C?
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Eiko and others gave correct answers.
Here's a simpler way: Directly access the private member variable.
Example
In the header .h file:
@property (strong, nonatomic, readonly) NSString* foo;
In the implementation .m file:
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ASP.NET MVC Relative Paths
...("~/Scripts/jquery-1.2.6.js")%>"></script>
Or use MvcContrib and do this:
<%=Html.ScriptInclude("~/Content/Script/jquery.1.2.6.js")%>
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