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用户界面（UI）组件 · App Inventor 2 中文网
...图像（Image）
TaifunImage 拓展：图像高级处理
SimpleBase64 拓展：图像Base64编解码
标签（Label）
列表选择器（ListPicker）
列表显示框（ListView）
对话框（Notifier）
密码输入框（PasswordTextBox）
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Where can I download english dictionary database in a text format? [closed]
...purpose dictionary you can look up most words in.
– Lèse majesté
Dec 28 '12 at 2:50
2
The Objec...
How to unescape HTML character entities in Java?
... @NickFrolov, your comments seem a bit messed up. auml is for instance ä and not д.
– aioobe
Oct 17 '16 at 1:52
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show 3 more comments...
Convert char to int in C#
... @KeithA: There's a reason for it to return double: char.GetNumericValue('¼') yields 0.25. The joys of Unicode... ;-)
– Heinzi
Jun 26 '12 at 10:09
1
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怎么通过app inventor接收mqtt平台推送的长消息 - App Inventor 2 中文网 -...
...用表示法），后面才是真正的base64内容。但是AppInventor2 SimpleBase64组件解码时，参数必须是不带前缀的base64文本，因此只需要去掉前缀就行，代码如下：
如果图片是jpeg格式，那就是下面这样替换，其他图片格式依次类推：
...
App Inventor 2 图片缩放并返回Base64文本 - App应用开发 - 清泛IT社区，为创新赋能！
...区，自动还原代码块）
参考用法如下：
其中，用到的SimpleBase64拓展，点此查看。其中，用到的TaifunImage拓展，点此查看。
来源中文文档：https://www.fun123.cn/reference/ ... age-compress-base64
How to find the statistical mode?
...ered Dec 14 '12 at 8:00
Rasmus BååthRasmus Bååth
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How to recursively download a folder via FTP on Linux [closed]
... Sep 22 '08 at 9:01
Thibaut BarrèreThibaut Barrère
8,38322 gold badges1919 silver badges2727 bronze badges
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What does character set and collation mean exactly?
...llation is how to compare characters, in latin9, there are letters as e é è ê f, if sorted by their binary representation, it will go e f é ê è but if the collation is set to, for example, French, you'll have them in the order you thought they would be, which is all of e é è ê are equal, an...
Remove all special characters with RegExp
...letters.
Do not use [^\w\s], this will remove letters with accents (like àèéìòù), not to mention to Cyrillic or Chinese, letters coming from such languages will be completed removed.
You really don't want remove these letters together with all the special characters. You have two chances:
Add...