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开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...合部署在嵌入式设备或资源有限的服务器上。优点：易于安装使用支持 MQTT 5.0 协议轻量高效积极的社区支持
缺点：可扩展性有限（<100k）没有集群支持缺少企业功能有限的云原生支持
EMQX 简介EMQX 项目于 2012 年底在 Github 发...
思维导图软件 XMind 与 FreeMind 的对比 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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本站介绍文章
FreeMind 介绍
XMind 介绍
体积(仅安装目录)
16MB
40 MB
内存占用(不打开任何文档)
45 MB
75 MB
一、XMind 与 FreeMind 的相同/相通之处
– 都是免费、开源、基于 Java。
– 都满足绘制思维...
Why can't a text column have a default value in MySQL?
... bug #19498 in the MySQL Bugtracker:
Bryce Nesbitt on April 4 2008 4:36pm:
On MS Windows the "no DEFAULT" rule is an error, while on other platforms it is often a warning. While not a bug, it's possible to get trapped by this if you write code on a lenient platform, and later run it on a stric...
App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前...
... 服务条款 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2...
Transform DateTime into simple Date in Ruby on Rails
... %M - Minute of the hour (00..59)
%p - Meridian indicator (``AM'' or ``PM'')
%S - Second of the minute (00..60)
%U - Week number of the current year,
starting with the first Sunday as the first
day of the first week (00..53)
%W - Week number of the current year,
...
How to get UTC time in Python?
...am. Also it allows for "virtual clocks" in say computer games: It is now 5 pm in my fantasy world. Forcing a timezone onto the datetime object would be awkward, especially with timedelta arithmetics.
– DustByte
Feb 6 at 9:55
...
Android Center text on canvas
...droid.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.os.B...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
...nth.JANUARY , 23 ) ;
LocalTime lt = LocalTime.of( 14 , 0 ) ; // 14:00 = 2 PM.
ZonedDateTime zdt = ZonedDateTime.of( ld , lt , z ) ;
If you want the first moment of the day as your time-of-day, let java.time determine that moment. Do not assume the day starts at 00:00:00. Anomalies such as Dayligh...
NuGet for solutions with multiple projects
...
This sweet deal works for me:
PM> Get-Project -all | where {$_.Name -match "Songhay.Silverlight" -and
$_.Name -notmatch "ApplicationLoader" -and $_.Name -notmatch ".Xml"}
| ForEach-Object {Install-Package MvvmLight -project $_.Name}
...
How can I rotate an HTML 90 degrees?
...ed Jun 17 '17 at 12:18
subindas pmsubindas pm
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