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What is the inverse function of zip in python? [duplicate]
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349
lst1, lst2 = zip(*zipped_list)
should give you the unzipped list.
*zipped_list unpacks the ...
Creating NSData from NSString in Swift
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361
In Swift 3
let data = string.data(using: .utf8)
In Swift 2 (or if you already have a NSSt...
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
来源: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。 【...
What's the difference between jQuery's replaceWith() and html()?
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Paolo BergantinoPaolo Bergantino
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Join a list of strings in python and wrap each string in quotation marks
...clear with the quotes
– jamylak
May 3 '17 at 2:47
1
@jamlak ok, repr just seemed safer to me inca...
Convert floats to ints in Pandas?
...f= pd.DataFrame(range(5), columns=['a'])
df.a = df.a.astype(float)
df
Out[33]:
a
0 0.0000000
1 1.0000000
2 2.0000000
3 3.0000000
4 4.0000000
pd.options.display.float_format = '{:,.0f}'.format
df
Out[35]:
a
0 0
1 1
2 2
3 3
4 4
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What is the size of column of int(11) in mysql in bytes?
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713
An INT will always be 4 bytes no matter what length is specified.
TINYINT = 1 byte (8 bit)
SMA...
Which is better, number(x) or parseFloat(x)?
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318
The difference between parseFloat and Number
parseFloat/parseInt is for parsing a string, whi...
Getting the last element of a list
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3253
some_list[-1] is the shortest and most Pythonic.
In fact, you can do much more with this syn...
Converting array to list in Java
... the Arrays.asList utility method.
Integer[] spam = new Integer[] { 1, 2, 3 };
List<Integer> list = Arrays.asList(spam);
See this code run live at IdeOne.com.
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