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为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...n123.cn/reference/extensions/aix_dev.html
为什么需要开发拓展？App Inventor 2 是积木式在线安卓开发环境，利用拖拽式的方式实现代码块堆叠，从而完成相应的逻辑。上手很容易，但是由于代码块提供的功能有限，使用比较单一，在开发...
How do I remove diacritics (accents) from a string in .NET?
I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e , so crème brûlée would become creme brulee )
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PHP global in functions
...ngletons, registries, constants). You do not want to use them. A function call should not have to rely on anything outside, e.g.
function fn()
{
global $foo; // never ever use that
$a = SOME_CONSTANT // do not use that
$b = Foo::SOME_CONSTANT; // do not use that unl...
What's the best way to validate an XML file against an XSD file?
... JDK 6 uses SAX parser with a StreamSource. A JAXP implementation could legally use a DOM parser in this case, but there is no reason to. If you use a DOM parser explicitly for validation, you will definitely instantiate a DOM tree.
– McDowell
Jul 21 '12 at 14:...
Java FileReader encoding issue
...to a string, but I found the result is wrongly encoded and not readable at all.
6 Answers
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Prevent the keyboard from displaying on activity start
...g both in code, and in xml! Indeed, this is the most correct answer! Especially since it was probably that 3 minutes you spent writing both methods that made you not first ;-)
– eric
Apr 21 '17 at 1:13
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Django filter queryset __in for *every* item in list
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Summary:
One option is, as suggested by jpic and sgallen in the comments, to add .filter() for each category. Each additional filter adds more joins, which should not be a problem for small set of categories.
There is the aggregation approach. This query would be shorter and...
交作业 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
本帖最后由 6921孙 于 2023-01-14 14:26 编辑
第一课作业提交: 第一课讲的是关于“撸猫”的简单程序，作业中没有使用加速度传感器，而是增加了“狗”以及猫和狗之间切换的程序，点击按钮二与按钮三即可切...
Markdown 常见用法 - 移动App技术 - 清泛IT论坛，有思想、有深度
待整理：https://blog.csdn.net/duoduo_11011/article/details/106200592
“列表显示框”中的列表选项点不动？ - App Inventor 2 中文网 - 清泛IT社...
转会员Adonise提问：
BLE设备列表显示在“列表显示框”中，测试时列表中的选项点不动？
建议可以先用排除法：新建一个项目，列表显示框加几个测试项，看能否点的动。
新项目手机点不动的话，换模拟器试试。便于找到...