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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.m>php m>
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m>PHP m>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.m>php m>
QRCodeGenerator 拓展方案：https://community.appinventor.mi ... tor-m>ex m>tension/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m>PHP m>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/m>ex m>tensions.m>php m>
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。
A regular m>ex m>pression to m>ex m>clude a word/string
...noreme3)
You can add as much ignored words as you like, here is a simple m>PHP m> implementation:
$ignoredWords = array('ignoreme', 'ignoreme2', 'ignoreme...');
preg_match('~^/\b([a-z0-9]+)\b(?<!' . implode('|', array_map('preg_quote', $ignoredWords)) . ')~i', $string);
...
How to see which commits in one branch aren't in the other?
I have two branches devel and nm>ex m>t . In devel I have a more or less huge amount of commits. Some of the commits are cherry picked in nm>ex m>t . Also I added some commits to nm>ex m>t which are merged to devel .
...
What is the method for converting radians to degrees?
...rads -> x*pi/180
I guess if you wanted to make a function for this [in m>PHP m>]:
function convert($type, $num) {
if ($type == "rads") {
$result = $num*180/pi();
}
if ($type == "degs") {
$result = $num*pi()/180;
}
return $result;
}
Yes, that coul...
Is floating-point math consistent in C#? Can it be?
...ve learned about one special case where floating points are deterministic. m>Ex m>planation I got is: For multiplication/division, if one of the FP numbers is power of two number (2^x), significant/mantissa won't change during calculation. Only m>ex m>ponent will change (point will move). So rounding will nev...
AngularJS- Login and Authentication in each route and controller
...
Just in case others have problems getting this m>ex m>ample to run: in the routeChangeStart callback you should check whether the location is actually "/login" and allow that: if ( $location.path() === "/login" ) return;
– user2084865
Ap...