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App Inventor 2 扩展 · App Inventor 2 中文网
...ing projects with extension components
2.4 Deleting extension components
2.5 Sharing projects that use extension components
2.6 Extension component repositories
2.7 Naming extension components
2.8 Updating projects that use extensions
How to create extension components
3.1 Practice creati...
二分查找（BinarySearch）算法的AI2实现 · App Inventor 2 源码商店
Aia Store beta App Inventor 2 中文网 开始编程 中文文档 中文教程 中文社区 关于 关于我们...
Difference between Math.Floor() and Math.Truncate()
...wo possibilities, such as rounding so that the final digit is even ("Round(2.5,MidpointRounding.ToEven)" becoming 2) or so that it's further away from zero ("Round(2.5,MidpointRounding.AwayFromZero)" becoming 3).
The following diagram and table may help:
-3 -2 -1 0 1...
App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
... 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 DynamicComponents 拓展：动...
Assign multiple columns using := in data.table, by group
...n(b), sum(b)), by = a][]
# a b col1 col2 mean sum
# 1: 1 1 hi hello 2.5 5
# 2: 2 2 hi hello 3.5 7
# 3: 3 3 hi hello 4.5 9
# 4: 1 4 hi hello 2.5 5
# 5: 2 5 hi hello 3.5 7
# 6: 3 6 hi hello 4.5 9
mynames = c("Name1", "Longer%")
x[ , (mynames) := list(mean(b) * 4, su...
包默认：src\appinventor\ai_zqp2013\test269 定制包名考虑实现一下。 - 微...
包默认：src\appinventor\ai_zqp2013\test269
定制包名考虑实现一下。edu.mit.appinventor.aicompanion3.Screen1main=appinventor.ai_zqp2013.test269.Screen1
ai2starter46比aistarter改进的地方是什么 - App Inventor 2 中文网 - 清泛...
ai2starter46有什么优缺点，，还有什么地方是可以优化的
优点是它是最终的兜底方案，对于学生教学场景，功能测试要求不高、或不想受游戏App干扰、或商业模拟器安装不了，推荐使用AI2Starter模拟器。
缺点很明显，速度较慢...
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What's the bad magic number error?
... stack trace when the import fails?
As an aside, the first word of all my 2.5.1(r251:54863) pyc files is 62131, 2.6.1(r261:67517) is 62161. The list of all magic numbers can be found in Python/import.c, reproduced here for completeness (current as at the time the answer was posted, it may have chan...
Simplest code for array intersection in javascript
... b.shift();
}
}
return result;
}
Non-destructive has to be a hair more complicated, since we’ve got to track indices:
/* finds the intersection of
* two arrays in a simple fashion.
*
* PARAMS
* a - first array, must already be sorted
* b - second array, must already be sort...