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【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...uetooth SIG）在2010年发布了跨时代的蓝牙4.0，它并不是蓝牙3.0的简单升级版本，而是全新的技术架构，蓝牙4.0版本分两种模式：单模蓝牙和双模蓝牙。常见的蓝牙音箱，是典型的双模蓝牙，它需要传输大量的音频数据。而小米手环...
PHP best way to MD5 multi-dimensional array?
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Changing the color of the axis, ticks and labels for a plot in matplotlib
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How can I read a function's signature including default argument values?
...h',))
However, note that inspect.getargspec() is deprecated since Python 3.0.
Python 3.0--3.4 recommends inspect.getfullargspec().
Python 3.5+ recommends inspect.signature().
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Stripping everything but alphanumeric chars from a string in Python
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I just timed some functions out of curiosity. In these tests I'm removing non-alphanumeric ch...
How can I initialise a static Map?
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edited Apr 11 '19 at 13:48
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how do I insert a column at a specific column index in pandas?
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see docs: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.insert.html
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FIND_IN_SET() vs IN()
... to the first non-digit (a comma in your case).
Thus,
companyID IN ('1,2,3') ≡ companyID IN (CAST('1,2,3' AS INT)) ≡ companyID IN (1)
In PostgreSQL, you could cast the string into array (or store it as an array in the first place):
SELECT name
FROM orders
JOIN company
ON company...
“ImportError: No module named” when trying to run Python script
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edited May 23 '17 at 11:33
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answered Mar 25 '13 at 18:24
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What is the purpose and use of **kwargs?
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