大约有 47,000 项符合查询结果（耗时：0.0380秒） [XML]
How to send email attachments?
I am having problems understanding how to email an attachment using Python. I have successfully emailed simple messages with the smtplib . Could someone please explain how to send an attachment in an email. I know there are other posts online but as a Python beginner I find them hard to understand....
Rolling median algorithm in C
...ial window of values, then perform a binary search to insert the new value and remove the existing one at each iteration.
1...
Is log(n!) = Θ(n·log(n))?
...og(n) + log(n) + ... + log(n)
= n*log(n)
And you can get the lower bound by doing a similar thing after throwing away the first half of the sum:
log(1) + ... + log(n/2) + ... + log(n) >= log(n/2) + ... + log(n)
= log(n/2) ...
What is the difference between char s[] and char *s?
...o world";
will place "Hello world" in the read-only parts of the memory, and making s a pointer to that makes any writing operation on this memory illegal.
While doing:
char s[] = "Hello world";
puts the literal string in read-only memory and copies the string to newly allocated memory on the...
Is main() really start of a C++ program?
The section $3.6.1/1 from the C++ Standard reads,
11 Answers
11
...
Is it possible to add dynamically named properties to JavaScript object?
...
+1 because this helped me. But I don't understand why an object properties is handled like an array.
– Ron van der Heijden
Mar 5 '13 at 11:56
...
CSS endless rotation animation
...
@-webkit-keyframes rotating /* Safari and Chrome */ {
from {
-webkit-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
}
to {
-webkit-transform: rotate(360deg);
-o-transform: rotate(360deg);
trans...
How can I find the data structure that represents mine layout of Minesweeper in memory?
...sample application. I've found this MSDN article on a simple WinDbg command that reveals all the mines but it is old, is not explained in any detail and really isn't what I'm looking for.
...
grep, but only certain file extensions
...ant.
To take the explanation from HoldOffHunger's answer below:
grep: command
-r: recursively
-i: ignore-case
-n: each output line is preceded by its relative line number in the file
--include \*.cpp: all *.cpp: C++ files (escape with \ just in case you have a directory with asterisks in the fi...
Number of lines in a file in Java
...ly need to know the number of lines in these files, usually I open them up and read them line by line until I reach the end of the file
...