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What is the source code of the “this” module doing?
... 97):
for i in range(26):
d[chr(i+c)] = chr((i+13) % 26 + c)
Builds the translation table, for both uppercase (this is what 65 is for) and lowercase (this is what 97 is for) chars.
print "".join([d.get(c, c) for c in s])
Prints the translated string.
...
What are the most-used vim commands/keypresses?
I'm a Ruby programming trying to switch from Textmate to MacVim, and I'm having trouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' ...
Add SUM of values of two LISTS into new LIST
...
tomtom
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1...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...调试，我把代码列在下面：#include <stdio.h>
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
&nbs...
Relative imports in Python 3
...
unfortunately, this module needs to be inside the package, and it also
needs to be runnable as a script, sometimes. Any idea how I could
achieve that?
It's quite common to have a layout like this...
main.py
mypackage/
__init__.py
mymodule.py
...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...echoes a PID into it. This serves as a protection if the process is killed before removing the pidfile:
LOCKFILE=/tmp/lock.txt
if [ -e ${LOCKFILE} ] && kill -0 `cat ${LOCKFILE}`; then
echo "already running"
exit
fi
# make sure the lockfile is removed when we exit and then claim it
...
Check if a String contains numbers Java
...
Yassin Hajaj
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answered Sep 3 '13 at 11:19
Evgeniy DorofeevEvgeniy Dorofe...
Finding local maxima/minima with Numpy in a 1D numpy array
...n from numpy/scipy that can find local maxima/minima in a 1D numpy array? Obviously the simplest approach ever is to have a look at the nearest neighbours, but I would like to have an accepted solution that is part of the numpy distro.
...
How to convert a String to CharSequence?
...nce cs = "string";
String s = cs.toString();
foo(s); // prints "string"
public void foo(CharSequence cs) {
System.out.println(cs);
}
If you want to convert a CharSequence to a String, just use the toString method that must be implemented by every concrete implementation of CharSequence.
Hope ...
ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...就可以用该类来进行匹配了，Match方法的原型如下：
BOOL Match(const RECHAR *szIn, CAtlREMatchContext *pContext, const RECHAR **ppszEnd=NULL)
参数的含义很明显，不过需要注意到第一个参数的型别是：const RECHAR * szIN，是一个 const指针，这表...