大约有 30,000 项符合查询结果（耗时：0.0589秒） [XML]
Shell script “for” loop syntax
...ort those features in the POSIX standard, but by default let some of their extra features through. The C-style for-loop is not a POSIX feature, but may be in sh mode by the actual shell.
– chepner
Sep 12 '13 at 19:41
...
Find XOR of all numbers in a given range
... ^ 3 ^ 4 .. ^ b
b is greater than a, so just by safely dropping in a few extra brackets (which we can because it's associative), we can also say this:
f(b) = ( 0 ^ 1 ^ 2 ^ 3 ^ 4 .. ^ (a-1) ) ^ (a ^ a+1 ^ a+2 .. ^ b)
Which simplifies to:
f(b) = f(a-1) ^ (a ^ a+1 ^ a+2 .. ^ b)
f(b) = f(a-...
Can I bind an array to an IN() condition?
...
i think soulmerge is right. you'll have to construct the query-string.
<?php
$ids = array(1, 2, 3, 7, 8, 9);
$inQuery = implode(',', array_fill(0, count($ids), '?'));
$db = new PDO(...);
$stmt = $db->prepare(
'SELECT *
FROM table
WHERE id IN(' . $inQuery . ')'
)...
Performing Inserts and Updates with Dapper
...using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string insertQuery = @"INSERT INTO [dbo].[Customer]([FirstName], [LastName], [State], [City], [IsActive], [CreatedOn]) VALUES (@FirstName, @LastName, @State, @City, @IsActive...
How to write log base(2) in c/c++
...uld work assuming integer is 32 bit wide, no ? For 64 bit it would have an extra i>>32 . But since Java has only 32-bit ints, it is fine. For C/C++ it needs to be considered.
– Zoso
May 27 '17 at 8:12
...
How to find serial number of Android device?
... (TelephonyManager)myActivity.getSystemService(Context.TELEPHONY_SERVICE);
String uid = tManager.getDeviceId();
getSystemService is a method from the Activity class. getDeviceID() will return the MDN or MEID of the device depending on which radio the phone uses (GSM or CDMA).
Each device MUST ...
C++: How to round a double to an int? [duplicate]
...te & possibly slow. See clang-tidy for an explanation : clang.llvm.org/extra/clang-tidy/checks/…
– ACyclic
Nov 2 '16 at 13:36
...
How do I open a second window from the first window in WPF?
... Owner method basically ties the window to another window in case you want extra windows with the same ones.
LoadingScreen lc = new LoadingScreen();
lc.Owner = this;
lc.Show();
Consider this as well.
this.WindowState = WindowState.Normal;
this.Activate();
...
Good tool to visualise database schema? [closed]
...
I think this answer needs extra explanation: norbauer.com/rails-consulting/notes/…
– fguillen
Jun 14 '13 at 10:24
...
Best way of invoking getter by reflection
... comes with other handy stuff. i.e. on-the-fly value conversion (object to string, string to object) to simplify setting properties from user input.
share
|
improve this answer
|
...