大约有 40,000 项符合查询结果（耗时：0.0525秒） [XML]
How can I format a String number to have commas and round?
...rts different locales (eg: in some countries that would get formatted as 1.000.500.000,57 instead).
You also need to convert that string into a number, this can be done with:
double amount = Double.parseDouble(number);
Code sample:
String number = "1000500000.574";
double amount = Double.parseD...
Is it possible to specify a starting number for an ordered list?
...rrent versions of Firefox and Chromium). In the following code snippet, 10.000 will be interpreted as 10; the same applies to 10,000. So don't use the following type of counter value:
<ol start="10.000">
<li>Item 10.000</li>
<li>Next item</li>
<li>Next item...
What is the colon operator in Ruby?
...e some of the things mentioned in the answers:
require 'benchmark'
n = 1_000_000
print '"foo".equal? "foo" -> ', ("foo".equal? "foo"), "\n"
print '"foo" == "foo" -> ', ("foo" == "foo" ), "\n"
print ':foo.equal? :foo -> ', (:foo.equal? :foo ), "\n"
print ':foo == :foo ->...
How can I output leading zeros in Ruby?
... see the documentation on this now (ruby-doc.org/core/classes/String.html#M000770), but it's very concise and I'd like a little elaboration.
– Nathan Long
Oct 9 '09 at 11:29
1
...
How to escape JSON string?
...efault:
if (c < ' ') {
t = "000" + String.Format("X", c);
sb.Append("\\u" + t.Substring(t.Length - 4));
} else {
sb.Append(c);
}
break;
...
Add leading zeroes/0's to existing Excel values to certain length
...
=TEXT(A1,"0000")
However the TEXT function is able to do other fancy stuff like date formating, aswell.
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Way to get number of digits in an int?
... be flawed too i am no benchmark expert). Over a large number of runs (100 000 000), the speed is 11s to 8s on my machine hardly twice as fast.
– Jean
Aug 20 '09 at 15:36
5
...
Undo git update-index --skip-worktree
...following command:
git ls-files -v | grep -i ^S | cut -c 3- | tr '\012' '\000' | xargs -0 git update-index --no-skip-worktree
git ls-files -v will print all files with their status
grep -i ^S will filter files and select only skip worktree (S) or skip worktree and assume unchanged (s), -i means ...
Read file line by line using ifstream in C++
... are interesting. I have tested the code with ASCII files that contain 100,000 lines, 1,000,000 lines and 10,000,000 lines of text. Each line of text contains 10 words in average. The program is compiled with -O3 optimization and its output is forwarded to /dev/null in order to remove the logging ti...
Are GUID collisions possible?
I'm working on a database in SQL Server 2000 that uses a GUID for each user that uses the app it's tied to. Somehow, two users ended up with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision stil...