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1、如果自定义错误提示?2、网络接口连接错误导致程序经常有卡死的现象如何...

郡主,您好。请问,如何让这种错误提示从对话框中输出?我想自定义提示内容。另外,网络连接不上时,程序会经常有卡死的现象,请问如何解决?第一个问题请参考:https://bbs.tsingfun.com/thread-1730-1-1.html 第二个问题请参考:h...
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AsciiConversion 拓展问题:字母开头的会出现“C2”非预期字符 - App Inven...

...,而原生并没有这个数据结构,使用拓展可以实现:UrsAI2ByteArray 字节数组扩展:读写二进制数据 - App Inventor 2 拓展 2、字符串模式下,使用Ascii拓展将二进制列表转换成字符串再发送,当二进制为0~127时,能够正常转换发送并...
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如何实现设置用户头像功能呢? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...的组件可以实现,具体用法参考中文文档:https://www.fun123.cn/reference/components/media.html App Inventor 2  发表于 2024-11-17 18:58 多媒体下面的组件可以实现,具体用法参考中文文档:https://www.fun123.cn/reference/components/media.h ... 这个...
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What is the difference between ui-bootstrap-tpls.min.js and ui-bootstrap.min.js?

... 200 So, ui-bootstrap-tpls.min.js == (ui-bootstrap.min.js + HTML templates) required by the JavaSc...
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How to find the statistical mode?

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Rearrange columns using cut

... 152 For the cut(1) man page: Use one, and only one of -b, -c or -f. Each LIST is made up of ...
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Add 2 hours to current time in MySQL?

... SELECT * FROM courses WHERE DATE_ADD(NOW(), INTERVAL 2 HOUR) > start_time See Date and Time Functions for other date/time manipulation. share | improve this answer ...
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Can't install PIL after Mac OS X 10.9

... 28 Answers 28 Active ...
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typeof for RegExp

... | edited Nov 27 '18 at 6:34 Alexis Wilke 14.2k77 gold badges5151 silver badges9898 bronze badges ...
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Combine two data frames by rows (rbind) when they have different sets of columns

... 234 rbind.fill from the package plyr might be what you are looking for. ...