大约有 16,380 项符合查询结果（耗时：0.0305秒） [XML]
How can I default a parameter to Guid.Empty in C#?
...
Solution
You can use new Guid() instead
public void Problem(Guid optional = new Guid())
{
// when called without parameters this will be true
var guidIsEmpty = optional == Guid.Empty;
}
You can also use default(Guid)
default(Guid) also will work exactly as new Guid().
Becaus...
Android Location Providers - GPS or Network Provider?
In my application I would like to determine the user's current location. I do however have a couple of questions in this regard:
...
How to exit pdb and allow program to continue?
I'm using the pdb module to debug a program. I'd like to understand how I can exit pdb and allow the program to continue onward to completion. The program is computationally expensive to run, so I don't want to exit without the script attempting to complete. continue doesn't seems to work. How can...
How do you plot bar charts in gnuplot?
...
Simple bar graph:
set boxwidth 0.5
set style fill solid
plot "data.dat" using 1:3:xtic(2) with boxes
data.dat:
0 label 100
1 label2 450
2 "bar label" 75
If you want to style your bars differently, you can do ...
?: operator (the 'Elvis operator') in PHP
I saw this today in some PHP code:
5 Answers
5
...
Does a finally block run even if you throw a new Exception?
In this code will someVar be set even if the catch block is executed and the second Exception is thrown?
6 Answers
...
Enabling markdown highlighting in Vim
I'm using Vim in a terminal on my MacBook Air with OS X Lion, and I can't seem to find a good plugin for Markdown syntax highlighting.
...
Unique combination of all elements from two (or more) vectors
I am trying to create a unique combination of all elements from two vectors of different size in R.
5 Answers
...
JRuby on Rails vs. Ruby on Rails, what's difference?
I'm looking to try out JRuby and JRuby on Rails. I'm having trouble finding information on what's difference between JRuby on Rails and Ruby on Rails.
...
Multiple commands in gdb separated by some sort of delimiter ';'?
I am trying to execute two commands at once in gdb:
6 Answers
6
...