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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
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其中：
values - 表示待发送的数据（这里是单字节0x01，表示高电平）
signed - 表示values数据是否是有符号的数值（假表示无符号）
serviceUuid - 服务UUID，通俗来讲它就是硬件的唯一身份ID
characteristicUuid - 特性UUID，通俗来...
How come a non-const reference cannot bind to a temporary object?
...signment to 'x'.
Note that getx() does not return a reference but a fully formed object into the local context. The object is temporary but it is not const, thus allowing you to call other methods to compute a value or have other side effects happen.
// It would allow things like this.
getPipeline...
Can the Unix list command 'ls' output numerical chmod permissions?
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JB.JB.
32.9k1010 gold badges7878 silver badges104104 bronze badges
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Why do I get “'property cannot be assigned” when sending an SMTP email?
... phadaphunk
11k1111 gold badges6262 silver badges100100 bronze badges
answered Feb 8 '12 at 20:59
MRBMRB
3,91611 gold badge1111 s...
Could someone explain the pros of deleting (or keeping) unused code?
... is a very specific case: when the code is written in a weird/un-intuitive form and the clean way of re-writing it doesn't work for a really subtle reason. This should also be applied only after a repeated attempt has been made to correct the issue and every time the attempt has re-introduced the sa...
How can I profile Python code line-by-line?
... 1.3 10.8 EnumLoc = Ident1
157 50000 68001 1.4 11.2 if EnumLoc == Ident1:
158 50000 63739 1.3 10.5 break
159 50000 61575 1.2 10.1 return IntParIO
Hope that helps!
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Traits in PHP – any real world examples/best practices? [closed]
...ong
– rickchristie
Oct 25 '11 at 17:01
15
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How to put the legend out of the plot
...nd-location
– meduz
Oct 23 '13 at 9:01
4
as completeness, you could say that in general (summed u...
How to get last key in an array?
...ery helpful.
– Lulu
Dec 8 '15 at 23:01
This approach does not work if the array has duplicate values. eg. for array('a...
What's the best three-way merge tool? [closed]
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Does anyone have an opinion on this answer in 2016?
– Shadoninja
Apr 10 '16 at 18:27
4
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