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Version number comparison in Python
...cmp("2.1", "1.2") > 0
assert mycmp("5.6.7", "5.6.7") == 0
assert mycmp("1.01.1", "1.1.1") == 0
assert mycmp("1.1.1", "1.01.1") == 0
assert mycmp("1", "1.0") == 0
assert mycmp("1.0", "1") == 0
assert mycmp("1.0", "1.0.1") < 0
assert mycmp("1.0.1", "1.0") > 0
assert mycmp("1.0.2.0", "1.0.2") ...
Print a string as hex bytes?
...
Verified,Python 3.7.6: import sys ; s="Déjà vu Besançon,Lupiñén,Šiauliai,Großräschen,Łódź,Аша,广东省,LA" ; for c in s: ; w=sys.stdout.write(c+":"+c.encode('utf-8').hex()+"||") ; (out) D:44||é:c3a9||j:6a||à:c3a0|| :20||v:76||u:75|| :20||B:42||e:65||s:73||a:61||...
What is the best collation to use for MySQL with PHP? [closed]
I'm wondering if there is a "best" choice for collation in MySQL for a general website where you aren't 100% sure of what will be entered? I understand that all the encodings should be the same, such as MySQL, Apache, the HTML and anything inside PHP.
...
What is a plain English explanation of “Big O” notation?
...bound
big-O notation doesn't care about constant factors: the function 9x² is said to "grow exactly like" 10x². Neither does big-O asymptotic notation care about non-asymptotic stuff ("stuff near the origin" or "what happens when the problem size is small"): the function 10x² is said to "grow e...
How to retrieve GET parameters from javascript? [duplicate]
...rams(window.location.search.slice(1));
– Raphaël Gonçalves
Mar 20 '18 at 10:22
1
This doesn't w...
How to check if a float value is a whole number
...value is a whole number, use the float.is_integer() method:
>>> (1.0).is_integer()
True
>>> (1.555).is_integer()
False
The method was added to the float type in Python 2.6.
Take into account that in Python 2, 1/3 is 0 (floor division for integer operands!), and that floating po...
What is the list of supported languages/locales on Android?
... [Dutch (Belgium)]
nl_BQ [Dutch (Caribbean Netherlands)]
nl_CW [Dutch (Curaçao)]
nl_NL [Dutch (Netherlands)]
nl_SR [Dutch (Suriname)]
nl_SX [Dutch (Sint Maarten)]
nmg_ [Kwasio]
nmg_CM [Kwasio (Cameroon)]
nn_ [Norwegian Nynorsk]
nn_NO [Norwegian Nynorsk (Norway)]
nnh_ [Ngiemboon]
nnh_CM [Ngiemboon (...
App Inventor 2 手机蓝牙及语音控制 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...源：http://www.zsqz.com/chuangke/13.htm【学习目标】
1.掌握蓝牙客户端或服务端组件的使用；
2.学会编写手机蓝牙APP，并向Arduino发送控制指令；
3.学会编写手机语音控制程序，并能通过语音控制Arduino等设备。 【项...
BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...”设备——Ubertooth One拥有二次开发和嗅探已建立连接的蓝牙通信数据包的能力；
而淘宝购买的廉价CC2540开发板则作为最佳替补方案。
0x1 低功耗蓝牙SOC低功耗蓝牙推出以来，众多厂商根据标准规范实现了不同的解决方案，包括...
低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别 · App Inventor 2 中文网
...要反馈
低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别
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低功耗蓝牙(BLE) vs 经典蓝牙(SPP)
区别项
低功耗蓝牙(BLE)
经典蓝牙(SPP ...