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BLE协议—广播和扫描 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...上原文出处链接和本声明。
本文链接：https://blog.csdn.net/qq619203312/article/details/135333847
BLE协议—广播和扫描
广播
访问地址
广播类型
广播数据PDU
AD Stucture
广播响应包
广播间隔
扫描
扫描类别
扫描...
How can I open a link in a new window?
...lass='#'>[website]</a>
<a name="aWebsiteUrl" href="http://www.qq.com" class='#'>[website]</a>
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How can Perl's print add a newline by default?
... l o g o o d b y e
0000014
$ perl -e '$\ = qq{\n}; print q{hello};print q{goodbye}' | od -c
0000000 h e l l o \n g o o d b y e \n
0000016
Update: my answer speaks to capability rather than advisability. I don't regard adding "\n" ...
SQL Server: Get data for only the past year
...nction :
DATEADD (*datepart* , *number* , *date* )
datepart can be: yy, qq, mm, dy, dd, wk, dw, hh, mi, ss, ms
number is an expression that can be resolved to an int that is added to a datepart of date
date is an expression that can be resolved to a time, date, smalldatetime, datetime, datetime...
廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...clean all&yum makecache
3、安装DRBD 请参考
http://user.qzone.qq.com/58740020/blog/1448855653
3.1、不一样的地方
同步以上操作或文件,并初始化资源及启动服务
drbdadm create-md r0
service drbd start
此处只能提升一个节点为主资源
drbdadm primar...
How to delete every other line in Vim?
...art in command mode.
Go to the beginning of the file by pressing gg.
Press qq.
Click arrow down and press dd after.
Press q.
Press 10000@q
PS: To go to command mode just press Escape a couple of times.
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While loop to test if a file exists in bash
...an do this:
file=/tmp/list.txt
while [ ! -f "$file" ]
do
inotifywait -qqt 2 -e create -e moved_to "$(dirname $file)"
done
This reduces the delay introduced by sleep while still polling every "x" seconds. You can add more events if you anticipate that they are needed.
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
Jackson overcoming underscores in favor of camel-case
...
one qq: when i use snake_case naming strategy will the json files with underscores be deserialized to camel case?
– Ram Patra
Aug 5 '16 at 23:28
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How to mkdir only if a directory does not already exist?
...
The old tried and true
mkdir /tmp/qq >/dev/null 2>&1
will do what you want with none of the race conditions many of the other solutions have.
Sometimes the simplest (and ugliest) solutions are the best.
...