大约有 19,000 项符合查询结果（耗时：0.0342秒） [XML]
What is the Java ?: operator called and what does it do?
...
Yes, it is a shorthand form of
int count;
if (isHere)
count = getHereCount(index);
else
count = getAwayCount(index);
It's called the conditional operator. Many people (erroneously) call it the ternary operator, because it's the only ternar...
Help with C# generics error - “The type 'T' must be a non-nullable value type”
...ou aren't constraining the type of T, so it could end up being Nullable<Form>, which is obviously invalid.
You need to change the constraint to where T : struct, IComparable to ensure that T can only be a value type.
...
convert from Color to brush
...
@raiserle: For your information, the question content used to be I want to convert from Brush to Color in c# while the title was the other way around.
– H.B.
Jan 4 '18 at 19:36
...
Load HTML file into WebView
...
You could presumably also load it form a String if you're very adverse to using assets...(see stackoverflow.com/questions/4543349/load-local-html-in-webview)
– Joe
Apr 21 '11 at 21:36
...
Disable messages upon loading a package
...(C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: x86_64-pc-linux-gnu (64-bit)
[...]
R> suppressMessages(library(ROCR))
R> # silently loaded
R> search()
[1] ".GlobalEnv" "package:ROCR" # it's rea...
How do I get java logging output to appear on a single line?
...
As of Java 7, java.util.logging.SimpleFormatter supports getting its format from a system property, so adding something like this to the JVM command line will cause it to print on one line:
-Djava.util.logging.SimpleFormatter.format='%1$tY-%1$tm-%1$td %1$tH:%1$t...
Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...断点
2. lm查看loaded Modules
lm
start end module name
01330000 0134b000 MyApp C (private pdb symbols) E:\ProLab\WindbgFirst\Debug\MyApp.pdb
59bc0000 59ce4000 MSVCR90D (deferred)
75100000 75200000 kernel32 (deferred)
76750000 76796000 KE...
What is the !! (not not) operator in JavaScript?
I saw some code that seems to use an operator I don't recognize, in the form of two exclamation points, like so: !! . Can someone please tell me what this operator does?
...
C#: Looping through lines of multiline string
...l etc :) Having said that, if you do want to do a manual loop, this is the form that I typically prefer over Fredrik's:
using (StringReader reader = new StringReader(input))
{
string line;
while ((line = reader.ReadLine()) != null)
{
// Do something with the line
}
}
This ...
List comprehension: Returning two (or more) items for each item
...cause it does not require recreating the list on every + (thus has O(N) performance rather than O(N^2) performance). I'll still use sum(..., []) when I want a quick one-liner or I'm in a hurry, or when the number of terms being combined is bounded (e.g. <= 10).
– ninjagecko
...