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ImageUtil 拓展：图像组件的附加工具，提供图片水印功能 - App Inventor 2 ...
例如，图像添加水印功能等，具体可以查看原文了解更多。
.aix 下载：
来源：https://community.appinventor.mi ... age-component/53047
App Inventor 2 复制屏幕功能，界面设计更便捷，避免误删组件 · App Inventor 2 中文网
...普通组件、图片、附件、拓展、代码块。更多升级详情可查看发布日志。
下面演示一下屏幕的复制效果：
1、Screen1屏幕上有若干组件、及一个SQLite拓展：
2、点击工具栏上的“复制屏幕”按钮，输入新屏幕名称：
3、复制...
App Inventor 2 复制屏幕功能，误删组件的“后悔药”，界面设计更便捷 - Ap...
...普通组件、图片、附件、拓展、代码块。更多升级详情可查看发布日志。下面演示一下屏幕的复制效果：1、Screen1屏幕上有若干组件、及一个SQLite拓展：2、点击工具栏上的“复制屏幕”按钮，输入新屏幕名称：3、复制后的Screen2...
AI2伴侣权限的问题 - App应用开发 - 清泛IT社区，为创新赋能！
...07-29 19:57 编辑
关于这个遇到的问题，请跳到以下链接去查看
https://bbs.tsingfun.com/thread-1864-1-1.html
然后，经过我这几天的神仙操作，终于找到解决的问题：
首先，先接触手机对AI2伴侣软件的管控（我的话就是解除连接网络的管...
为什么“Screen1.初始化”方法报错？ - App应用开发 - 清泛IT社区，为创新赋能！
Q：为什么“Screen1.初始化”方法报错？
A：可以点击红色叉叉查看报错具体原因。不过这里一看就是方法重复定义导致的。也就是有两个这个方法，去掉一个就行了。
Change column type from string to float in Pandas
... if you wanted to save some memory and use a more compact dtype, like float32, or int8?
to_numeric() gives you the option to downcast to either 'integer', 'signed', 'unsigned', 'float'. Here's an example for a simple series s of integer type:
>>> s = pd.Series([1, 2, -7])
>>> s
0 ...
How do I print the type of a variable in Rust?
...e, set the variable to a type which doesn't work:
let mut my_number: () = 32.90;
// let () = x; would work too
error[E0308]: mismatched types
--> src/main.rs:2:29
|
2 | let mut my_number: () = 32.90;
| ^^^^^ expected (), found floating-point number
|
= ...
Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
...as unsigned long, and
unsigned long is a 64-bit unsigned integer.
int is a 32-bit integer.
So int is a "smaller" datatype than NSUInteger, therefore the compiler warning.
See also NSUInteger in the "Foundation Data Types Reference":
When building 32-bit applications, NSUInteger is a 32-bit un...
How can I set Image source with base64
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
How do I convert between big-endian and little-endian values in C++?
...bit numbers:
unsigned short _byteswap_ushort(unsigned short value);
For 32 bit numbers:
unsigned long _byteswap_ulong(unsigned long value);
For 64 bit numbers:
unsigned __int64 _byteswap_uint64(unsigned __int64 value);
8 bit numbers (chars) don't need to be converted.
Also these are only d...