大约有 46,000 项符合查询结果（耗时：0.0544秒） [XML]
String formatting: % vs. .format vs. string literal
Python 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations?
...
Optimal number of threads per core
...unt of time. The process is ideally parallelizable, so I can run chunks of it on an infinite number of threads and each thread takes the same amount of time.
...
Kill a Process by Looking up the Port being used by it from a .BAT
In Windows what can look for port 8080 and try to kill the process it is using through a .BAT file?
14 Answers
...
What is the difference between Tomcat, JBoss and Glassfish?
...ing to look into Enterprise Java and the book I am following mentions that it will use JBoss. Netbeans ships with Glassfish. I have used Tomcat in the past.
...
Why does a base64 encoded string have an = sign at the end
...
It serves as padding.
A more complete answer is that a base64 encoded string doesn't always end with a =, it will only end with one or two = if they are required to pad the string out to the proper length.
...
“static const” vs “#define” vs “enum”
...
It depends on what you need the value for. You (and everyone else so far) omitted the third alternative:
static const int var = 5;
#define var 5
enum { var = 5 };
Ignoring issues about the choice of name, then:
If you ...
How do I make a textbox that only accepts numbers?
I have a windows forms app with a textbox control that I want to only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more g...
Form inside a table
...ements are closed immediately after opening (inputs, etc are not included within the form).
3 Answers
...
Using wget to recursively fetch a directory with arbitrary files in it
...
You have to pass the -np/--no-parent option to wget (in addition to -r/--recursive, of course), otherwise it will follow the link in the directory index on my site to the parent directory. So the command would look like this:
wget --recursive --no-parent http://example.com/configs/....
PHP Replace last occurrence of a String in a String?
Anyone know of a very fast way to replace the last occurrence of a string with another string in a string?
14 Answers
...