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How to Batch Rename Files in a macOS Terminal?
... files frequently, consider installing a specialized tool such as the Perl-based rename utility.
On macOS you can install it using popular package manager Homebrew as follows:
brew install rename
Here's the equivalent of the command at the top using rename:
rename -n -e 's/_.*_/_/' *.png
Agai...
C# Regex for Guid
...ersion 2.0. Languages such as Delphi, PHP, and R that
have regex features based on PCRE also support conditionals. (source http://www.regular-expressions.info/conditional.html)
The regex that follows Will match
{123}
(123)
123
And will not match
{123)
(123}
{123
(123
123}
123)
Regex:
^({)?(...
jQuery checkbox change and click event
...mply because it's a mouse related question. Please don't downvote answers based on their relevance to entirely separate issues. If you have a problem triggering the state of an indicator after a checkbox check via keyboard, please post a question about it instead of downvoting answers carelessly.
...
JS - get image width and height from the base64 code
I have a base64 img encoded that you can find here . How can I get the height and the width of it?
4 Answers
...
What is the difference between the kernel space and the user space?
...nerates an interrupt such as int 0x80 or syscall to signal the kernel. x86-64 Linux syscall hello world example:
.data
hello_world:
.ascii "hello world\n"
hello_world_len = . - hello_world
.text
.global _start
_start:
/* write */
mov $1, %rax
mov $1, %rdi
mov $hello_world, %...
In C++, is it still bad practice to return a vector from a function?
...tors freely (and make sure your own objects support it, too). If your code base needs to support "lesser" compilers, stick to the old style.
Unfortunately, that has major influence on your interfaces. If C++ 0x is not an option, and you need guarantees, you might use instead reference-counted or c...
CListCtrl 如何设置单元格颜色？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...元格颜色，需要对CListCtrl进行拓展，已有老外为我们写好demo，这里...CListCtrl默认可设置的内容很少，如单元格颜色默认无法设置。若想设置单元格颜色，需要对CListCtrl进行拓展，已有老外为我们写好demo，这里对其中原理、设置...
推荐引擎easyrec半天学习分享 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...port/update item
set item active
3.下了官方的demo,安装文档像傻瓜文档说明非常详细，使用确实方便，我初步理解可以把这个作为一个第三方服务发布，然后自己的网站做一些交互的接口
4.自己用js的简单调用
a.新建...
App Inventor 2 ECharts 拓展：基于 ECharts 强大的个性化数据图表展示 · ...
...源下载
.aix 拓展下载：
cn.fun123.ECharts.aix
demo程序下载：
echats_demo.aia
注：2个拓展是共一个.aix拓展文件，里面分2个拓展组件，导入.aix效果如下：
ECharts.js 图表库非常的丰富，只有你想不到没有它做不到的！
...
App Inventor 2 “虚拟”屏幕：同一屏幕展示多屏内容，模拟切换屏幕 · App...
...
虚拟屏幕（虚拟分屏）
开发步骤
demo下载：
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虚拟屏幕（虚拟分屏）
好处：大部分需要连接的组件（比如蓝牙客户端、MQTT、BluetoothLE、Wifi、Socket等）如果跨屏幕的话，都需...