大约有 32,293 项符合查询结果（耗时：0.0495秒） [XML]
How do I check if a string contains a specific word?
...tions are nearly by definition for readability (to communicate the idea of what you're doing). Compare which is more readable: if ($email->contains("@") && $email->endsWith(".com)) { ... or if (strpos($email, "@") !== false && substr($email, -strlen(".com")) == ".com") { ...
...
Practical uses for the “internal” keyword in C#
Could you please explain what the practical usage is for the internal keyword in C#?
22 Answers
...
What should I set JAVA_HOME environment variable on macOS X 10.6?
Many Java applications that use shell scripts to configure their environment use the JAVA_HOME environment variable to start the correct version of Java, locate JRE JARs, and so on.
...
What is more efficient? Using pow to square or just multiply it with itself?
What of these two methods is in C more efficient? And how about:
7 Answers
7
...
Disable LESS-CSS Overwriting calc() [duplicate]
...
@TomRoggero what version of less are you running? What's the rest of your environment? I've updated the original answer to include a working example.
– Patrick Berkeley
Aug 30 '14 at 16:54
...
system(“pause”); - Why is it wrong?
...ent which closes a terminal window before you can read the program output. What you should do is to fix that environment. If that can't be done, use this workaround, possibly only if IsDebuggerPresent() returns true and document this workaround properly ("why is this code here?").
...
What is the default value for enum variable?
...
It is whatever member of the enumeration represents the value 0. Specifically, from the documentation:
The default value of an enum E is the value produced by the expression (E)0.
As an example, take the following enum:
enum...
How do you determine what SQL Tables have an identity column programmatically
I want to create a list of columns in SQL Server 2005 that have identity columns and their corresponding table in T-SQL.
13...
What is the performance cost of having a virtual method in a C++ class?
...n call will cause a miss if you jump to instructions that aren't in cache. What matters is whether the function has been run before recently (making it more likely to be in cache), and whether your architecture can predict static (not virtual) branches and fetch those instructions into cache ahead o...
In Git, what is the difference between origin/master vs origin master?
...
This seems to actually be closest to what OP was looking for - origin master is telling the software to do something with whatever is on 'master' in the 'origin' repository.origin/master is a reference the same way f3a4d5 or HEAD is.
– Neme...