大约有 16,000 项符合查询结果(耗时:0.0444秒) [XML]

https://stackoverflow.com/ques... 

Get value from JToken that may not exist (best practices)

...t also complex objects. Here is a sample public class ClassA { public int I; public double D; public ClassB ClassB; } public class ClassB { public int I; public string S; } var jt = JToken.Parse("{ I:1, D:3.5, ClassB:{I:2, S:'test'} }"); int i1 = jt.GetValue<int>("I"); d...
https://stackoverflow.com/ques... 

Cleaner way to update nested structures

... I'll reproduce his example here: scala> @zip case class Pacman(lives: Int = 3, superMode: Boolean = false) scala> @zip case class Game(state: String = "pause", pacman: Pacman = Pacman()) scala> val g = Game() g: Game = Game("pause",Pacman(3,false)) // Changing the game state to "run" ...
https://stackoverflow.com/ques... 

Memory address of variables in Java

...ms fit (your objects may/will move around during garbage collection etc.) Integer.toBinaryString() will give you an integer in binary form. share | improve this answer | fol...
https://stackoverflow.com/ques... 

How can I properly handle 404 in ASP.NET MVC?

...lobal.asax, too much of the HttpContext is missing. You can not route back into your controllers like the example suggests. Refer to the comments in the blog link at top. – Matt Kocaj May 16 '10 at 5:56 ...
https://stackoverflow.com/ques... 

How do I get the resource id of an image if I know its name?

... With something like this: String mDrawableName = "myappicon"; int resID = getResources().getIdentifier(mDrawableName , "drawable", getPackageName()); share | improve this answer ...
https://stackoverflow.com/ques... 

Read error response body in Java

...o manage it ... connection code code code ... // Get the response code int statusCode = connection.getResponseCode(); InputStream is = null; if (statusCode >= 200 && statusCode < 400) { // Create an InputStream in order to extract the response object is = connection.getInpu...
https://stackoverflow.com/ques... 

What is the difference between '/' and '//' when used for division?

... 5 / 2 will return 2.5 and 5 // 2 will return 2. The former is floating point division, and the latter is floor division, sometimes also called integer division. In Python 2.2 or later in the 2.x line, there is no difference for integers unless you perform a from __future__ import division, which ...
https://stackoverflow.com/ques... 

How to load a xib file in a UIView

...ould have a subView half the size of the screen named "containerView". And into containerView he wanted to load the contents of his nib "firstView.xib". – NJones Oct 19 '11 at 2:36 ...
https://stackoverflow.com/ques... 

What's the best practice for primary keys in tables?

... of the little things matter. Just imagine if you have 1 billion rows with int or long pk's compared to using text or guid's. There's a huge difference! – Logicalmind Dec 3 '08 at 20:31 ...
https://stackoverflow.com/ques... 

How to create a DataTable in C# and how to add rows?

...ableName"); // 2 Add column to table: MyTable.Columns.Add("Id", typeof(int)); MyTable.Columns.Add("Name", typeof(string)); Add row to DataTable method 1: DataRow row = MyTable.NewRow(); row["Id"] = 1; row["Name"] = "John"; MyTable.Rows.Add(row); Add row to DataTable method 2: MyTable.Rows...