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BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...广播方式的报文有4种，分别为可连接的非定向广播（ADV_IND）、可连接的定向广播（ADV_DIRECT_IND）、可扫描非定向广播（ADV_SCAN_IND）、不可连接的非定向广播（ADV_NONCONN_IND）
4种广播的使用场景各不相同
可连接的非定向广播（ADV...
How can I format my grep output to show line numbers at the end of the line, and also the hit count?
... sometimes man page can take many pages. And this is hard to read all of them
– Eugen Konkov
May 22 '18 at 13:44
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Commands executed from vim are not recognizing bash command aliases
...ell only loads ~/.zshrc for interactive shells, but it loads ~/.zshenv for all shells, so I moved my alias setup there and it now works from within Vim. See man zsh (or your shell's man pages) for more.
– Nathan Long
Feb 8 '14 at 22:52
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What is the difference between JavaConverters and JavaConversions in Scala?
...eating wrappers that implement either the Scala interface and forward the calls to the underlying Java collection, or the Java interface, forwarding the calls to the underlying Scala collection.
JavaConverters uses the pimp-my-library pattern to “add” the asScala method to the Java collections ...
Is it possible to have multiple statements in a python lambda expression?
...Q. Can you put multiple statements in a lambda?
A. No. But you don't actually need to use a lambda. You can put the statements in a def instead. i.e.:
def second_lowest(l):
l.sort()
return l[1]
map(second_lowest, lst)
Q. Can you get the second lowest item from a lambda by sorting the ...
How to schedule a function to run every hour on Flask?
I have a Flask web hosting with no access to cron command.
8 Answers
8
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How do you specify that a class property is an integer?
... only has the concept of a number, which has a floating point.
Philosophically, the amount of work the compiler would have to do to enforce only whole numbers for a TypeScript int type could potentially be massive and in some cases it would still not be possible to ensure at compile time that only ...
How to wait for all goroutines to finish without using time.Sleep?
This code selects all xml files in the same folder, as the invoked executable and asynchronously applies processing to each result in the callback method (in the example below, just the name of the file is printed out).
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Prevent jQuery UI dialog from setting focus to first textbox
...ts, under the title 'Focus'):
Upon opening a dialog, focus is automatically moved to the first item
that matches the following:
The first element within the dialog with the autofocus attribute
The first :tabbable element within the dialog's content
The first :tabbable element withi...
How to get IntPtr from byte[] in C#
... a byte[] to a method takes a IntPtr Parameter in C#, is that possible and how?
8 Answers
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