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App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
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2、默认是GBK编码，非UTF-8的，如“你好”对应16进制：C4 E3 BA C3。而AI2中文字符串默认是UTF-8编码的（E4 BD A0 E5 A5 BD ）。
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Removing MySQL 5.7 Completely [closed]
... answered Oct 10 '12 at 13:06
E3GE3G
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What is sr-only in Bootstrap 3?
...n. About 90% of the world's visually impaired live in low-income settings. 82% of people living with blindness are aged 50 and above."
– Cato Minor
Apr 3 '17 at 18:57
add a co...
Why is rbindlist “better” than rbind?
...:cols, function(x) sample(10))))
setnames(data, sample(names))
}
n = 10e3L
ll = vector("list", n)
for (i in 1:n) {
.Call("Csetlistelt", ll, i, foo())
}
system.time(ans1 <- rbindlist(ll))
# user system elapsed
# 1.226 0.070 1.296
system.time(ans2 <- rbindlist(ll, use.names=TRU...
Is there a difference between “==” and “is”?
...0**3 evaluates to True in Python 3.7 since 10**3 is type int. But 1000 is 1e3 evaluates to False since 1e3 is type float.
– Ahmed Fasih
Sep 8 '19 at 1:13
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What is self-documenting code and can it replace well documented code? [closed]
... community wiki
8 revs, 3 users 82%ine
73
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What is the direction of stack growth in most modern systems?
... community wiki
15 revs, 4 users 82%paxdiablo
3
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How do I iterate over the words of a string?
... community wiki
2 revs, 2 users 82%kev
15
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How to create GUID / UUID?
...ardry I can't take credit for:
function uuidv4() {
return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
);
}
console.log(uuidv4());
Update, 2020-01-06: There is a proposal in t...
How do I obtain crash-data from my Android application?
... community wiki
3 revs, 2 users 82%PanosJee
4
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