大约有 30,000 项符合查询结果(耗时:0.0549秒) [XML]
How to initialize a struct in accordance with C programming language standards
...o, designated initializers are for when you declare and define at the same time, but compound literals are for when you define an already-declared variable?
– Geremia
Mar 24 '16 at 19:09
...
Remove an element from a Bash array
...ce (n-array size, k-values to delete). Performance measure seconds of user time
N K New(seconds) Current(seconds) Speedup
1000 10 0.005 0.033 6X
10000 10 0.070 0.348 5X
10000 20 0.070 0.656 9X
10000 1 0.0...
sql primary key and index
...eys to be automatically (uniquely) indexed, it is NOT absolute. There are times when it is essential that a primary key NOT be uniquely indexed.
In most RDBMSs, a unique index will automatically be created on a primary key if one does not already exist. Therefore, you can create your own index on...
Open and write data to text file using Bash?
...ught me here, opening file descriptors for reading and writing at the same time should also be mentioned.
#!/bin/bash
# Open file descriptor (fd) 3 for read/write on a text file.
exec 3<> poem.txt
# Let's print some text to fd 3
echo "Roses are red" >&3
echo "Violets are ...
How to close Android application?
...
It was not deprecated at the time that this was originally posted. Since the current AP then was 7 and the current API now is 19, there is probably another way to do this now.
– Danny Remington - OMS
May 6 '14 at 1...
How to force a Solution file (SLN) to be opened in Visual Studio 2013?
... the solution.
You may want to delete the removed project folder at this time since step 3 did not delete it.
This worked for me when neither zumey’s nor TCC’s answers did.
EDIT
Metro Smurf had a similar, but easier answer than mine for a similar question. His steps were:
Open solution in...
How do you convert a byte array to a hexadecimal string, and vice versa?
...own performance dramatically, I would tend to ignore this and trust the Runtime and the GC to take care of it.
– Tomalak
Mar 6 '09 at 17:11
89
...
use Winmerge inside of Git to file diff
...hem sequentially, forcing you to close the diff tool windows one file at a time.
Update June 2012 (2-and-a-half years later):
Comparing directories instead of file-by-file will be available soon:
See [ANNOUNCE] Git 1.7.11.rc1:
"git difftool" learned the "--dir-diff" option to spawn external di...
Why there is no ConcurrentHashSet against ConcurrentHashMap
....
Anyway, the Java designers could have created a new set interface every time a new map interface was created, but that pattern would be impossible to enforce when third parties create their own maps. It is better to have the static methods that derive new sets; that approach always works, even wh...
What's the difference between a continuation and a callback?
... callbacks. A function may callback any number of functions, any number of times. For example:
var array = [1, 2, 3];
forEach(array, function (element, array, index) {
array[index] = 2 * element;
});
console.log(array);
function forEach(array, callback) {
var length = array....
