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App Inventor 2 AsciiConversion 拓展,ASCII编码与解码,Ascii码转换 · App Inventor 2 中文网

...符。 Conversion: 给出 Ascii码列表,转换后返回相应的文本。 « 返回首页 AsciiConversion 拓展 .aix 拓展下载: AsciiConversion.aix demo程序下载: test_AsciiConversion.aia 此扩展允许用户将 Ascii 代码(列表)转换为相应的文...
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App Inventor 2 怎么获取输入对话框中用户输入的文本? - App Inventor 2 ...

转:怎么获取对话框输入的文本?如何判断输入完成? 答复: [hide] 使用 对话框.显示文本对话框 弹出与用户交互的对话框,用户可输入内容。 用户输入且点了确定按钮,会触发完成事件,事件中拿”响应“就是用户...
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App Inventor 2 文本.合并字符串的引号问题 - App Inventor 2 中文网 - 清...

...比如‘A’和‘B’,是‘AB’吗 答复: [hide]引号也是文本,应该中间还有两个引号。你可以验证一下。 经测试,的确如此: 问:那有办法去掉吗? 答: 问:就是我只想去掉开头的引号,但是我不想去掉中间的...
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App Inventor 2 文本输入框怎么设置输入数子上下限! - App应用开发 - 清...

App Inventor 2 文本输入框怎么设置输入数字上下限!例如设置下限为0.1 上限99 如果下限输入小于0自动改为0.1,输入大于99自动改为99, 在下限0.1 与上限99 之间能任意输入,怎么做?目前只能点计算按钮,事件中加判断,不合适提醒...
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AppInventor 文本框颜色怎么设置? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

如题: 文本框只能设置 文字颜色 和 背景颜色: [hide]文本框的颜色没有直接的设置选项,跟着屏幕的交互颜色走的,具体请看文档:https://www.fun123.cn/reference/ ... terface.html#Screen [/hide]
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AppInventor2文本输入框下面的横线怎么去掉? - App应用开发 - 清泛IT社区...

Q:你好,文本输入框下面这条横线怎么去掉呢? ----------------------- 这个属于系统本身的样式,待研究一下。。。 将文本输入框的“背景颜色”设置为“透明”即可实现输入框下面横线的隐藏: 效果参考如下: (...
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Troubleshooting “Illegal mix of collations” error in mysql

...B using COLLATE latin1_general_ci which causes another error: COLLATION 'utf8_general_ci' is not valid for CHARACTER SET 'latin1'' - even if you do not have a column with CHARACTER SET 'latin1'! The solution is to use the BINARY cast. See also this question – Mel_T ...
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How can I output UTF-8 from Perl?

I am trying to write a Perl script using the "utf8" pragma, and I'm getting unexpected results. I'm using Mac OS X 10.5 (Leopard), and I'm editing with TextMate. All of my settings for both my editor and operating system are defaulted to writing files in utf-8 format. ...
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invalid byte sequence for encoding “UTF8

... If you need to store UTF8 data in your database, you need a database that accepts UTF8. You can check the encoding of your database in pgAdmin. Just right-click the database, and select "Properties". But that error seems to be telling you there'...
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How to change the default collation of a table?

...nvert to clause): alter table <some_table> convert to character set utf8mb4 collate utf8mb4_unicode_ci; Edited the answer, thanks to the prompting of some comments: Should avoid recommending utf8. It's almost never what you want, and often leads to unexpected messes. The utf8 character ...