大约有 34,900 项符合查询结果（耗时：0.0410秒） [XML]
How to Generate unique file names in C#
...age10.png") and if that fails (because the file already exists), I fall back to GUIDs.
Update:
Recently, I've also use DateTime.Now.Ticks instead of GUIDs:
var myUniqueFileName = string.Format(@"{0}.txt", DateTime.Now.Ticks);
or
var myUniqueFileName = $@"{DateTime.Now.Ticks}.txt";
The benefi...
Separating class code into a header and cpp file
...red Mar 6 '12 at 8:09
Ferenc DeakFerenc Deak
29.3k1313 gold badges8080 silver badges141141 bronze badges
...
How to remove unused imports in Intellij IDEA on commit?
...
When you commit, tick the Optimize imports option on the right. This will become the default until you change it.
I prefer using the Reformat code option as well.
shar...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
I am looking for a way to concatenate the strings of a field within a group by query. So for example, I have a table:
14 An...
How do you test that a Python function throws an exception?
...
Robert Siemer
23.9k77 gold badges6767 silver badges8282 bronze badges
answered Sep 24 '08 at 20:02
MoeMoe
...
Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
I'm a beginner RoR programmer who's planning to deploy my app using Heroku. Word from my other advisor friends says that Heroku is really easy, good to use. The only problem is that I still have no idea what Heroku does...
...
In WPF, what are the differences between the x:Name and Name attributes?
...
There really is only one name in XAML, the x:Name. A framework, such as WPF, can optionally map one of its properties to XAML's x:Name by using the RuntimeNamePropertyAttribute on the class that designates one of the classes properties as mapping to the x:Name attribute of XAML.
The r...
Access parent URL from iframe
Okay, I have a page on and on this page I have an iframe. What I need to do is on the iframe page, find out what the URL of the main page is.
...
Understanding colors on Android (six characters)
I am trying to understand how colors work in Android. I have this color set as the background of my LinearLayout , and I get a background gray with some transparency:
...
EditText maxLines not working - user can still input more lines than set
User can input more than 5 lines, by pressing enter/next row key. How can I limit user input to fixed amount of rows with EditText?
...