大约有 46,000 项符合查询结果（耗时：0.0597秒） [XML]
sed whole word search and replace
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not posix | GNU sed OK
– Oleg Mazko
Aug 25 '16 at 10:19
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Updating packages in Emacs
...resh-contents unconditionally tries to download a package list from all repos you've added to package-archives; package-archive-contents is non nil if you have already downloaded the package list.
ELPA is the original. I don't think it's really maintained anymore, but I'm not sure. I don't use it....
File input 'accept' attribute - is it useful?
...ndicates that files of the specified type are accepted.
A string whose first character is a U+002E FULL STOP character (.)
Indicates that files with the specified file extension are accepted.
share
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What are best practices for validating email addresses on iOS 2.0
...at is the cleanest way to validate an email address that a user enters on iOS 2.0?
13 Answers
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Get bitcoin historical data [closed]
...import time
import logging
import sys
import datetime
import signal
import os
logging.basicConfig()
log_file_fd = None
def sigint_and_sigterm_handler(signal, frame):
global log_file_fd
log_file_fd.close()
sys.exit(0)
class BitstampLogger:
def __init__(self, log_file_path, log_fi...
Can Google Chrome open local links?
...e intranet with a restricted set of users? While it can be bad practice, those who chose to misuse the feature must be held accountable for their actions rather than having a useful protocol scheme removed so that none may benefit (who also use it appropriately).
– Rook
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How to measure elapsed time in Python?
...eryPerformanceCounter(). The resolution is typically
better than one microsecond.
Deprecated since version 3.3: The behaviour of this function depends
on the platform: use perf_counter() or process_time() instead,
depending on your requirements, to have a well defined behaviour.
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How to get unique device hardware id in Android? [duplicate]
...ice ID in Android which cannot be changed when performing a phone reset or OS update?
3 Answers
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Automatically import modules when entering the python or ipython interpreter
I find myself typing import numpy as np almost every single time I fire up the python interpreter. How do I set up the python or ipython interpreter so that numpy is automatically imported?
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Bash if [ false ] ; returns true
...e; a non-empty string is an expression that evaluates as true, just as in most other programming languages. false is a command which always fails. (By analogy, true is a command that always succeeds.)
– chepner
Oct 29 '13 at 22:24
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