大约有 42,000 项符合查询结果（耗时：0.0466秒） [XML]
Can't find the 'libpq-fe.h header when trying to install pg gem
I am using the Ruby on Rails 3.1 pre version. I like to use PostgreSQL, but the problem is installing the pg gem. It gives me the following error:
...
Stopping python using ctrl+c
...
This is a great answer to enable the most common "break" which is ctrl+c.
– Xerion
Apr 21 '16 at 19:09
add a comment
|...
Timeout function if it takes too long to finish [duplicate]
...wing code as timeout.py).
from functools import wraps
import errno
import os
import signal
class TimeoutError(Exception):
pass
def timeout(seconds=10, error_message=os.strerror(errno.ETIME)):
def decorator(func):
def _handle_timeout(signum, frame):
raise TimeoutError(e...
Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
....config['DEBUG']:
from werkzeug import SharedDataMiddleware
import os
app.wsgi_app = SharedDataMiddleware(app.wsgi_app, {
'/': os.path.join(os.path.dirname(__file__), 'static')
})
This example assumes your static files are in the folder "static", adjust to whatever fits your ...
C/C++获取Windows的CPU、内存、硬盘使用率 - C/C++ - 清泛网 - 专注C/C++及内核技术
...s()函数可以获取系统中逻辑驱动器的数量，函数返回的是一个32位无符号整型数据。
while (DiskInfo)//通过循环操作查看每一位数据是否为1，如果为1则磁盘为真,如果为0则磁盘不存在。
{
if (DiskInfo & 1)//通过位运算的逻...
中国的股市真真是看不懂了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...12-1335-4=1473 只股票停盘（停盘占比52%）创业板涨停：历经一个多月的暴...截止2015/7/9 13:30，沪深A股4股下跌，超半数股票停盘：
其余：2812-1335-4=1473 只股票停盘（停盘占比52%）
创业板涨停：
历经一个多月的暴跌...
Generating a SHA-256 hash from the Linux command line
...
NOTE: on OS X (BSD), it's echo -n foobar | shasum -a 256
– Olie
Oct 16 '14 at 15:26
6
...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...graphical applications started via the Dock or Spotlight, in addition to those started via the terminal).
Obviously you will not want to do this every time you login.
[Edit]: To avoid this, launch AppleScript Editor, enter a command like this:
do shell script "launchctl setenv variablename valu...
Programmatically generate video or animated GIF in Python?
...ng x = [a, b, c] to *x which can be thought of as a, b, c (without the enclosing brackets). In function calls these are synonymous: f(*x) == f(a, b, c). In tuple unpacking it's particularly useful in cases where you want to split an iterable into a head (first element) and a tail (the rest), which i...
Detecting a mobile browser
...|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|a...