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微数据库 · App Inventor 2 中文网
... 应用介绍
数据存储一般分为两大类：本地 和 网络，本地一般是数据文件的形式存储在手机上，本地App每次启动都可以共享读取，但是不同的手机之间不可以共享数据；如果需要多个手机之间共享获取或存储数据的话...
App Inventor 2 Web客户端（Web）详细用法示例 · App Inventor 2 中文网
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App Inventor 2 如何下载/保存网络图片？
设置好网络图片的url，然后执行Get方法即可，代码如下：
其中，特别要注意的是保存相应信息属性设置为真，这样才能将目标网络图片保存到本地...
【教学】AppInventor2人工智能应用：Personal Audio Classifier 自行训练神...
繁体中文原文：https://blog.cavedu.com/2020/04/ ... nalaudioclassifier/
AI 行動化（AI on mobile）呼應了人類生活早已離不開手機的事實，另一方面，手機處理晶片速度一日千里，今天跑不動的東西，很快就不再是問題。對於 AI 這個議題，...
Why do we need private subnet in VPC?
... private subnets, allowing those machines to use the NAT instance's public IP address for their outbound Internet access.
The new managed NAT service does not fundamentally change the applicability of the following information, but this option is not addressed in the content that follows. A NAT ...
How to get the IP address of the server on which my C# application is running on?
I am running a server, and I want to display my own IP address.
26 Answers
26
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How to get the primary IP address of the local machine on Linux and OS X? [closed]
...oking for a command line solution that would return me the primary (first) IP address of the localhost, other than 127.0.0.1
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Select rows which are not present in other table
...ll of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM login_log l
WHERE NOT EXISTS (
SELECT -- SELECT list mostly irrelevant; can just be empty in Postgres
FROM ip_location
WHERE ip = l.ip
);
Also consider:
What is easier to read in EXISTS subque...
How to get IP address of the device from code?
Is it possible to get the IP address of the device using some code?
27 Answers
27
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Deny all, allow only one IP through htaccess
I'm trying to deny all and allow only for a single IP. But, I would like to have the following htaccess working for that single IP. I'm not finding a way to have both working: the deny all and allow only one, plus the following options:
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How to identify server IP address in PHP
How can I identify the server IP address in PHP?
15 Answers
15
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