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Remove last character from string. Swift language
...answered Jul 24 '14 at 11:28
gui_dosgui_dos
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How to parse the AndroidManifest.xml file inside an .apk package
...nary XML format. What is this format and how can it be parsed programmatically (as opposed to using the aapt dump tool in the SDK)?
...
jquery data selector
...an see the available operators in the code below. Amongst them is ~= which allows regex testing:
$('a:data(category~=^mus..$,artist.name~=^M.+a$)');
I've tested it with a few variations and it seems to work quite well. I'll probably add this as a Github repo soon (with a full test suite), so keep...
adding noise to a signal in python
...umpy as np
import matplotlib.pyplot as plt
t = np.linspace(1, 100, 1000)
x_volts = 10*np.sin(t/(2*np.pi))
plt.subplot(3,1,1)
plt.plot(t, x_volts)
plt.title('Signal')
plt.ylabel('Voltage (V)')
plt.xlabel('Time (s)')
plt.show()
x_watts = x_volts ** 2
plt.subplot(3,1,2)
plt.plot(t, x_watts)
plt.title...
How do I run a Ruby file in a Rails environment?
...------
#!/usr/bin/env /Users/me/rails_project/script/rails runner
Product.all.each { |p| p.price *= 2 ; p.save! }
-------------------------------------------------------------
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class method generates “TypeError: … got multiple values for keyword argument …”
...de:
myfoo.foodo("something")
print
print myfoo
You'll output like:
<__main__.foo object at 0x321c290>
a thong is something
<__main__.foo object at 0x321c290>
You can see that 'thing' has been assigned a reference to the instance 'myfoo' of the class 'foo'. This section of the docs...
phpcms v9类别调用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...前面加一句把类别缓存加载进来：
<?php $TYPE = getcache('type_content','commons');?>
然后在循环里写：
<a href="index.php?m=content&c=type&catid={$catid}&typeid={$r[typeid]}">{$TYPE[$r[typeid]][name]}</a>
这样就可以调用出来类别了，不过链接暂时无效，因...
C-like structures in Python
...uct(NamedTuple):
foo: str
bar: int
baz: list
qux: User
my_item = MyStruct('foo', 0, ['baz'], User('peter'))
print(my_item) # MyStruct(foo='foo', bar=0, baz=['baz'], qux=User(name='peter'))
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ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...型，分别是“Request-Reply “，”Publisher-Subscriber“，”Parallel Pipeline”,我们从这三种模式一窥 ZMQ 的究竟
ZMQ 的 hello world！
由 Client 发起请求，并等待 Server 回应请求。请求端发送一个简单的 hello，服务端则回应一个 world。请求端...
Best way to create a simple python web service [closed]
...t you can use it with wsgi in different environments (cgi, fcgi, apache/mod_wsgi or with a plain simple python server for debugging).
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