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Extract substring using regexp in plain bash
...
Using pure bash :
$ cat file.txt
US/Central - 10:26 PM (CST)
$ while read a b time x; do [[ $b == - ]] && echo $time; done < file.txt
another solution with bash regex :
$ [[ "US/Central - 10:26 PM (CST)" =~ -[[:space:]]*([0-9]{2}:[0-9]{2}) ]] &&
echo ...
无法打包成apk - App应用开发 - 清泛IT社区，为创新赋能！
本帖最后由 wlf2201 于 2025-03-02 11:20 编辑
打包apk时候，出现服务器故障，无法保存文件，请稍候重试
程序写的比较大，几乎没有图片，500k稍微多点，新建立一个只有几个元件的小项目，可以顺利打包，怀疑时程序过大导致...
Converting string into datetime
...time import datetime
datetime_object = datetime.strptime('Jun 1 2005 1:33PM', '%b %d %Y %I:%M%p')
The resulting datetime object is timezone-naive.
Links:
Python documentation for strptime: Python 2, Python 3
Python documentation for strptime/strftime format strings: Python 2, Python 3
strftim...
DateTime format to SQL format using C#
...lt)
d: 6/15/2008
D: Sunday, June 15, 2008
f: Sunday, June 15, 2008 9:15 PM
F: Sunday, June 15, 2008 9:15:07 PM
g: 6/15/2008 9:15 PM
G: 6/15/2008 9:15:07 PM
m: June 15
o: 2008-06-15T21:15:07.0000000
R: Sun, 15 Jun 2008 21:15:07 GMT
s: 2008-06-15T21:15:07
t: 9:15 PM
T: 9:15:07 PM
u: 2008-...
Bold & Non-Bold Text In A Single UILabel?
... return attrStr
}
Usage:
let targetString = "Updated 2012/10/14 21:59 PM"
let range = NSMakeRange(7, 12)
let label = UILabel(frame: CGRect(x:0, y:0, width:350, height:44))
label.backgroundColor = UIColor.white
label.attributedText = attributedString(from: targetString, nonBoldRange: range)
lab...
Unicode equivalents for \w and \b in Java regular expressions?
...r Expressions. This is an exciting and dramatic improvement, and the development team is to be commended for this important effort.
Java’s Regex Unicode Problems
The problem with Java regexes is that the Perl 1.0 charclass escapes — meaning \w, \b, \s, \d and their complements — are not in...
Check time difference in Javascript
... 0, 1, 9, 0); // 9:00 AM
var date2 = new Date(2000, 0, 1, 17, 0); // 5:00 PM
// the following is to handle cases where the times are on the opposite side of
// midnight e.g. when you want to get the difference between 9:00 PM and 5:00 AM
if (date2 < date1) {
date2.setDate(date2.getDate() +...
Does Android keep the .apk files? if so where?
...
You can use package manager (pm) over adb shell to list packages:
adb shell pm list packages | sort
and to display where the .apk file is:
adb shell pm path com.king.candycrushsaga
package:/data/app/com.king.candycrushsaga-1/base.apk
And adb pull t...
【AI2+AI】人工智能舞姿识别App - 创客硬件开发 - 清泛IT社区，为创新赋能！
AI人工智能相关高阶教程，原文系翻译官方英文文章，侵删。文章内容质量较高，不过排版较乱（手机版排版不好，请使用PC浏览器查看）。
文章转载自：https://mc.dfrobot.com.cn/thread-308376-1-1.html
文章aia源码如下：
...
Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...学习之：manual.luaer.cn lua在线手册book.luaer.cn lua在线lua学习教程lua参考手册Lua参考手册的中文翻译（云风翻译版本）
关于Lua的标库，你可以看看官方文档：string， table， math， io， os。（全文完）
文章转自： 酷 壳 – Coo...