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App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网
...ntor.ble-20230728.aix
低功耗蓝牙，也称为蓝牙LE 或简称 BLE，是一种类似于经典蓝牙的新通信协议，不同之处在于它旨在消耗更少的功耗和成本，同时保持同等的功能。
因此，低功耗蓝牙是与耗电资源有限的物联网设备进行通信的...
VC教父阎焱：现在管钱的80%都是傻子 - 资讯 - 清泛网 - 专注C/C++及内核技术
VC教父阎焱：现在管钱的80%都是傻子阎焱同时强调这也是一个最好的时代，第一是政策好，在中国历史上，从没有上到总理，下到创业园，全社会一起呼吁大家创业的；第二是钱多，阎焱称投资20多年，没有见过这么多钱，“而...
Increase distance between text and title on the y-axis
...o do is to add a line break (\n) before your x axis, and after your y axis labels. Seems a lot easier (although dumber) than the solutions posted above.
ggplot(mpg, aes(cty, hwy)) +
geom_point() +
xlab("\nYour_x_Label") + ylab("Your_y_Label\n")
Hope that helps!
...
Pandas - Get first row value of a given column
...r method is a bit faster, because df.loc has to convert the row and column labels to
positional indices, so there is a little less conversion necessary if you use
df.iloc instead.
df['Btime'].iloc[0] = x works, but is not recommended:
Although this works, it is taking advantage of the way DataFr...
界面布局组件 · App Inventor 2 中文网
...包含 高度属性设置为填充父级 的组件，布局的实际高度是使用组件的自动高度计算的。
如果水平布局的 高度 属性设置为自动且其中没有任何组件，则 高度 将是 100%。
如果水平布局的 宽度 属性设置为自动，则...
Programmer Puzzle: Encoding a chess board state throughout a game
...rivate final Node left;
private final Node right;
private final String label;
private final int weight;
private Node(String label, int weight) {
this.left = null;
this.right = null;
this.label = label;
this.weight = weight;
}
public Node(Node left, Node right) {
thi...
What is the difference between a generative and a discriminative algorithm?
...
Let's say you have input data x and you want to classify the data into labels y. A generative model learns the joint probability distribution p(x,y) and a discriminative model learns the conditional probability distribution p(y|x) - which you should read as "the probability of y given x".
Here'...
Can every recursion be converted into iteration?
... r is any register
r = r – 1 where r is any register
GOTO x where x is a label
IF r ≠ 0 GOTO x where r is any register and x is a label
A label, followed by any of the above commands.
However, the conversions between recursive and non-recursive functions isn’t always trivial (except by mindl...
千亿时代 网游走到十字路口 - 资讯 - 清泛网 - 专注C/C++及内核技术
...到十字路口十余年发展有高峰也有低谷，中国游戏产业还是在去年迈入千亿元时代，而今年的ChinaJoy无疑是多重变局下的集中阅兵：增速放缓到不能再缓的端...十余年发展有高峰也有低谷，中国游戏产业还是在去年迈入千亿元时...
Hidden Features of C++? [closed]
...
@jpoh: http followed by a colon becomes a "label" which you use in a goto statement later. you get that warning from your compiler because it's not used in any goto statement in the above example.
– utku_karatas
Nov 4 '08 at 17:0...