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使用照相机时老是弹出 error 201 : the camera d id not return an image ...
...本过旧，不包含官方bug修复，请使用我们最新的平台 fun123.cn 试试。
引用: 参考资料：
https://community.appinventor.mi ... android-8-0/6024/14
https://github.com/mit-cml/appinventor-sources/issues/2140
AppInventor如何选相反数？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
问：AppInventor如何选相反数？
答：使用“数学”中的“相反数”积木：
返回给定数字的负数，若给定负数则返回正数。如：8 返回 -8，-0.7 返回 0.7，0 则仍然返回 0。
文档：https://www.fun123.cn/reference/blocks/math.html#neg
【二进制】UrsAI2ByteArray 字节数组扩展：读写二进制数据，二进制文件读写...
来源：https://www.fun123.cn/reference/iot/bytearray.html
功能概述 字节数组扩展允许对存储的数据进行顺序和随机访问。随机访问的索引基址（第一个元素的索引）可以使用Base属性设置。可能的值为1（App Inventor中常用）或0（Java或C中常...
How to create a multi-tenant database with shared table structures?
...
AdaTheDevAdaTheDev
123k2424 gold badges179179 silver badges181181 bronze badges
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App Inventor 2 FTP 客户端拓展：FTP协议连接、上传、下载、创建、修改目录...
...NAL_STORAGE 和 WRITE_EXTERNAL_STORAGE。
.aix 拓展下载：
cn.fun123.FTPClient.aix
属性
无
事件
Connected(result)
连接操作完成后触发此事件。
DownloadFileFinished(result)
下载文件操作完成后触发此事件...
Why is the asterisk before the variable name, rather than after the type?
...
123
If you look at it another way, *myVariable is of type int, which makes some sense.
...
How to generate gcc debug symbol outside the build target?
... Commit=190aa9cace3b12e2b58b692f068d4f5cf22b0145
VCS: BRANCH=refs/heads/PRJ123_feature_desc
VCS: AUTHOR=Joe Developer joe.developer@somewhere.com
VCS: COMMIT_DATE=2013-12-19
All that is left is to check-out the original code, re-compile without optimizations, and start debugging.
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Why are regular expressions so controversial? [closed]
...
123
Making Regexes Maintainable
A major advance toward demystify the patterns previously referred...
javascript pushing element at the beginning of an array [duplicate]
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123
Use .unshift() to add to the beginning of an array.
TheArray.unshift(TheNewObject);
See MDN...
Recommended way of getting data from the server
...l';
book.create();
// to retrieve a book
var bookPromise = Book.get(123);
bookPromise.then(function(b) {
book = b;
});
};
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