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App Inventor 2 列表显示框能否实现多选功能？ - App Inventor 2 中文网 - ...
...现，不过是收费的，12美刀。
https://puravidaapps.com/combobox.php
请教一个有关WEB 客户端 1的问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...WEB 客户端 1 通过 URL将参数传输给下图中地址并调用一个PHP文件，但是出现了错误信息“ERROR 1101：unable to get a response with the specified url"
我直接通过浏览器传输，显示结果正确。借助WEB浏览框如下图所示那样，也获得正确结果。
...
App Inventor 2 QRCode 扩展：二维码扫描及生成方案都在这里 - App Invento...
1、QRCode 二维码扫码：
使用原生的“条码扫描器”组件：
2、二维码生成的方案：
html + js + Web浏览器 方案：https://puravidaapps.com/qr.php
QRCodeGenerator 拓展方案：https://community.appinventor.mi ... tor-extension/47908
能否详细说明下数据库的应用？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
不能直连MYSQL，但有个贴子给出了方案，用PHP做了个中间件转发，但根据贴子操作未成功。又发现自带了云数据库的组件，但说明太少，比如哪里有云数据库的提供商，或者云数据库如何私有部署，能否详细说说，我想很多人应...
一个组件怎么悬浮在另一个组件上面？ - App Inventor 2 拓展 - 清泛IT社区...
...做？或者是什么扩展能做到？https://puravidaapps.com/extensions.php
页面中搜索“floating”，有多款拓展，有的效果还很不错，后续会整理翻译中文。
SQLite Concurrent Access
...emely fast and has many clever optimizations to minimize contention. Especially SQLite 3.
For most desktop/laptop/tablet/phone applications, SQLite is fast enough as there's not enough concurrency. (Firefox uses SQLite extensively for bookmarks, history, etc.)
For server applications, somebody som...
How to create id with AUTO_INCREMENT on Oracle?
...NCREMENT by 1),
c2 VARCHAR2(10)
);
Alternatively, Oracle 12 also allows to use a sequence as a default value:
CREATE SEQUENCE dept_seq START WITH 1;
CREATE TABLE departments (
ID NUMBER(10) DEFAULT dept_seq.nextval NOT NULL,
DESCRIPTION VARCHAR2(50) NOT NULL);
ALTER T...
Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]
...
My script was a .php script and this fixed the issue.
– Hardy
Nov 19 '15 at 18:57
2
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EOL conversion in notepad ++
..., when I open files from a unix server on my windows machine, they occasionally have Macintosh EOL conversion, and when I edit/save them again they don't work properly on the unix server. I only use notepad ++ to edit files from this unix server, so is there a way to create a macro that automatical...
How can I position my div at the bottom of its container?
...s absolute or relatively position in order to determine it's position. If all fails it resorts to body (window). So hence the need for the parent to be relative.
– user17753
Jun 13 '12 at 18:46
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