for fields, there is no difference except for storage location, life cycle, and initialization. Since the type of local variable can be inferred, the field should also be inferred.
for fields, there is no difference except for storage location, life cycle, and initialization. Since the type of local variable can be inferred, the field should also be inferred.
var is a new type that defines variables. It weakens the definition of types. VAR can replace any type. The compiler will determine what type you want to use according to the context. When you use VAR, I think you are not sure what type you are going to use. But at present, basically there are certain character types behind the keywords of var before they can be applied to fields. I think this is because the current compiler is not intelligent enough to fully judge your field type according to the context. And the variables applied by the Var keyword are initially assigned an initial value and are local, but most of the fields in our table are applied globally rather than locally, and there is no need to assign an initial value or the system will automatically have an initial value of 0. So just the Var keyword cannot be applied to the field, and it needs to be combined with the corresponding data type, because it only weakens the definition, not does not define it.
refer to Microsoft s instructions indicates that the default name of the web page is Publish.htm . but where should this finished page be placed in the project? ...
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use mobile games developed by unity and record game videos using everyplay. How can this video be saved in IOS albums? ...
for example, if there are two Boolean variables amenb, respectively, when b=true returns acentrology false, it returns! a, how to implement it with simple operation? how should I write a xxx b xxx? is actually a question of how to: true true f...
can the nailing movement get the champion information through the interface? ...
the start execution of the debug menu is grayed out and cannot be clicked. Why? ...
is the attribute marked with the [Dependency] attribute of Unity, which feels like a global variable. it is said on the Internet that it is equivalent to a static attribute, isn t it? ...
I built a website by learning that Flask Web (is the book whose cover is a dog). On the login page, I need to call the interface provided by WebService. Another developer on our side gave me an WebService interface for me to call, but I don t know how ...
is required to contain images in HTML; requires batch conversion, and each HTML generates a PDF; semi-finished word that requires C-sharp language code. ...
I debugged the asp.net website locally and introduced a single sign-on httpmodule,. The problem is that after a successful login, I have to jump back to the url before login (that is, the root directory of the domain name, the response should be default...
encounter item.Selected conversion problem when revamping website add "$ " such as < option selected= "selected " value= "$6$ " > red < option > < option value= "$3$ " > black < option > < option value= "$5$ " > blue < option > < option ...
I dump a request from Fiddler and ask if there is a third-party library of C-sharp or Nodejs that can parse http messages. If you can explain the picture data in the second picture, how to bring it up and save it locally. message is as follows ...
List<int> A = new List<int>() { 1, 1, 2, 3, 3 }; List<int> B = new List<int>() { 1, 3 }; AB List<int> A = new List<int>() { 1, 2, 3}; ...
I need to capture the startup and shutdown messages of windows, so I need an interface. After I do boot, the program does call my method in the background, but there is no interface, so I cannot receive the shutdown message of windows. But if I open the ...
the company needs to integrate the ccflow process engine on the original winform project. How do you integrate it? ask God for ideas. ...
as shown in the picture, here, I want to change all the int to bool type. What is the shortcut key? I know it s Ctrl+D in VSCODE, but it hasn t been found in VS2017 yet. ...
c-sharp referencing Enyim.Caching connection memcached1.4.6,Enyim version 2.1.2 Die set failed, why? ...
Hello, bosses! at the request of a friend, help him test a web vulnerability. after writing and running a HTTP GET, which he thought was very simple, he found that he could not achieve the desired effect in any case HttpWebRequest url =xxx, met...
current tool-related version VisualStudio 2017 Enterprise version EntityFramework 6.0.0 mysql-connector-net-6.10.6 mysql-for-visualstudio-1.2.7 problems encountered cannot add the MySQL data source support program to VisualStudio. The abov...
object Unit = (int) Word.WdUnits.wdCharacter; object Count = 1; int aa = wordDoc.Range (ref objStart, ref objEnd) .Delete (ref Unit, ref Count); I use the above code to delete a page in word. There is no problem in deleting the middle page, but it is ...