大约有 32,000 项符合查询结果（耗时：0.0506秒） [XML]
How to randomly sort (scramble) an array in Ruby?
... than zero. Instead sort_by remembers the computed value for each item and then sorts the items by that value. So in this case each item is assigned a random number and then the array is sorted by those random numbers.
– sepp2k
Sep 5 '11 at 6:09
...
Why do we always prefer using parameters in SQL statements?
... employee where salary = 0; Drop Table employee
The table employee would then be deleted.
In your case, it looks like you're using .NET. Using parameters is as easy as:
C#
string sql = "SELECT empSalary from employee where salary = @salary";
using (SqlConnection connection = new SqlConnectio...
Printing 1 to 1000 without loop or conditionals
...ously neither C nor C++, so this is fine only if we scrap the requirement. Then any answer may qualify because a hypothetical compiler might just produce the required program from any input.
– eq-
Jan 3 '11 at 19:34
...
Node.js spawn child process and get terminal output live
...ch easier now (6 years later)!
Spawn returns a childObject, which you can then listen for events with. The events are:
Class: ChildProcess
Event: 'error'
Event: 'exit'
Event: 'close'
Event: 'disconnect'
Event: 'message'
There are also a bunch of objects from childObject, they are:
Class: C...
How to install Android SDK Build Tools on the command line?
...egory. To see all available downloads, use
android list sdk --all
And then to get one of the packages in that list from the command line, use:
android update sdk -u -a -t <package no.>
Where -u stands for --no-ui, -a stands for --all and -t stands for --filter.
If you need to install ...
Getting output of system() calls in Ruby
...larify chaos's answer a bit.
If you surround your command with backticks, then you don't need to (explicitly) call system() at all. The backticks execute the command and return the output as a string. You can then assign the value to a variable like so:
output = `ls`
p output
or
printf output #...
Algorithm to calculate the number of divisors of a given number
...ivisors and x, y, and z are the number of times that divisor is repeated)
then the total count for all of the divisors is:
(x + 1) * (y + 1) * (z + 1).
Edit: BTW, to find a,b,c,etc you'll want to do what amounts to a greedy algo if I'm understanding this correctly. Start with your largest prime di...
Create dynamic URLs in Flask with url_for()
...e problem is how 'foo' is beyond the scope if it's a variable from Python. Then, how do you solve it?
– user9724045
Aug 2 '18 at 2:04
2
...
How to include external Python code to use in other files?
...
If you don't want to prefix your Calculate function with the module name then do this:
from Math import Calculate
If you want to import all members of a module then do this:
from Math import *
Edit: Here is a good chapter from Dive Into Python that goes a bit more in depth on this topic.
...
How do I byte-compile everything in my .emacs.d directory?
... my emacs, I first identified the slow parts using profile-dotemacs.el and then replaced them with autoloads.
share
|
improve this answer
|
follow
|
...