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StatusbarTools 状态栏工具扩展 · App Inventor 2 中文网
...及图标颜色样式。此扩展已开源，开发者可以参考和修改源代码。
功能概述
StatusbarTools扩展提供以下核心功能：
状态栏背景颜色自定义（BG Transparent Color）
状态栏背景透明度设置（Background Transparent）
状...
Is there a way for multiple processes to share a listening socket?
...s without using fork() and doesn't have a parent/child relationship, using Unix Sockets.
– Rahly
Aug 9 '14 at 21:28
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Find CRLF in Notepad++
...on't work.
You can manually copy the EOL and paste it into the field for Unix files (LF-only).
Simple search (Ctrl+F), Search Mode = Extended
The "Extended" option shows \n and \r as characters that could be matched.
As with the Normal search mode, Notepad++ is looking for the exact...
How do I change read/write mode for a file using Emacs?
...ent buffer writable.
Make the buffer writable as well."
(interactive)
(unix-output "chmod" "+w" (buffer-file-name))
(toggle-read-only nil)
(message (trim-right '(?\n) (unix-output "ls" "-l" (buffer-file-name)))))
The function depends on unix-output and trim-right:
(defun unix-output (comm...
How to get file creation & modification date/times in Python?
...platform way is easy - just call os.path.getmtime(path) and you'll get the Unix timestamp of when the file at path was last modified.
Getting file creation dates, on the other hand, is fiddly and platform-dependent, differing even between the three big OSes:
On Windows, a file's ctime (documented...
App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
...
DynamicComponents 拓展
🧩 代码块
异步支持
案例
FAQ
基准测试结果
« 返回首页
已有内置组件：本拓展已内置为 App Inventor 原生组件「动态组件」（类型名 DynamicComponents），积...
Difference between two dates in MySQL
...
select
unix_timestamp('2007-12-30 00:00:00') -
unix_timestamp('2007-11-30 00:00:00');
share
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30条爆笑的程序员梗 PHP是最好的语言 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
....烦恼
程序猿最烦两件事，第一件事是别人要他给自己的代码写文档，第二件呢?是别人的程序没有留下文档。
15.和谐
随机函数可以帮你实现家庭和谐： Talk{:top word(1)="恩!"; word(2)="好的!";word(3)="然后呢?";word(4)="有道理";i=random(4)...
初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...意外之喜。
安装
为了让文章更具完整性，我们选择从源代码安装MySQL，需要注意的是早期的版本有内存泄漏，所以推荐安装最新的稳定版，激活WITH_INNODB_MEMCACHED即可：
shell> groupadd mysql
shell> useradd -r -g mysql mysql
shell> tar zxvf m...
App Inventor 2 社区精华问答 · App Inventor 2 中文网
...隐藏”的非常的实用的小技巧
App Inventor 2 分享你的App：源代码(.aia)分享或编译成安卓安装包(.apk)分享
网上免登陆找素材、处理素材技巧
Save Camera Pictures with Custom Names（照相机定制个性化的文件名）
程序设计里代码块较多...