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利用 App Inventor 2 开发ChatGPT应用 - App Inventor 2 中文网 - 清泛网 - 专注C/C++及内核技术
...的组件从何而来，背后的原理是啥？
“ChatBot”组件在MIT官方在最新的v2.67版中引入的AI相关功能，通过合并官方代码，App Inventor 2 中文网（www.fun123.cn）已升级至v2.67，第一时间获得AI加持，在国内平台属于首发。
此版本使用 MIT...
AppInventor2添加超过10个屏幕会怎样？ - App Inventor 2 中文网 - 清泛IT...
...自文档：https://www.fun123.cn/reference/other/manyscreens.html
根据官方文档，建议屏幕数量不要超过10个，那么问了来了，实际上屏幕数量能否超过10个呢？超过10个会怎样？
试试就知道，我们来个压力测试，通过“复制屏幕”的功能，...
调研结论：File组件写log文件大小有上限吗？会无限增长吗？（附日志轮转方...
...日志，这个文件会不会无限变大？有没有大小上限？我把官方文档和源码翻了一遍，结论如下。
一、结论先行
File组件本身没有任何大小上限。AppendToFile 就是标准的文件追加写入（源码里 append=true 打开输出流，直接写），...
iOS开发如何提高 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...新的iOS开发知识，还可以提高英文听力水平。
看苹果的官方文档
苹果的官方文档相当详尽，对于不熟悉的API，阅读官方文档也是最直接有效地方式。
苹果的文档比较海量，适合选一些重点来阅读，比如人机交互指南就是必读...
Cannot lower case button text in android studio
...
I have faced this issue in TextView. I have tried
android:textAllCaps="false",
mbutton.setAllCaps(false);
<item name="android:textAllCaps">false</item>
none of that worked for me. Finally I fed up and I have hard coded text, it is wor...
Counting Chars in EditText Changed Listener
...o count the characters in the EditText , and show that number it in a TextView . I have written the following code and it works fine. However, my problem is when I click Backspace it counts up, but I need to decrement the number. How can I consider Backspace ?
...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...2G，这是INT整数范围决定的。
…
最后一个求助方式就是官方论坛了，那里的国际友人建议我检查一下是不是索引不佳所致，死马当活马医，我激活了Profiler记录慢操作：
mongo> use <DB>
mongo> db.setProfilingLevel(1);
不过结果显示基...
How is TeamViewer so fast?
...
My random guess is: TV uses x264 codec which has a commercial license (otherwise TeamViewer would have to release their source code). At some point (more than 5 years ago), I recall main developer of x264 wrote an article about improvements he m...
Bordered UITextView
I want to have a thin gray border around a UITextView . I have gone through the Apple documentation but couldn't find any property there. Please help.
...
'printf' vs. 'cout' in C++
..., lr}
mov pc, lr
.LBB0_5:
bl _ZSt16__throw_bad_castv
.align 2
@ BB#6:
However, to be honest, this means nothing, as I/O is the bottleneck anyway. I just wanted to show that iostream is not faster because it's "type safe". Most C implementations implement printf fo...