大约有 44,300 项符合查询结果（耗时：0.0465秒） [XML]
How can I read inputs as numbers?
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321
TLDR
Python 3 doesn't evaluate the data received with input function, but Python 2's input fu...
Explain the encapsulated anonymous function syntax
...ve a function expression without a name defined:
(function () {
alert(2 + 2);
}());
Or named function expression:
(function foo() {
alert(2 + 2);
}());
The Parentheses (formally called the Grouping Operator) can surround only expressions, and a function expression is evaluated.
The tw...
Getting list of parameter names inside python function [duplicate]
...= lambda x, y: (x, y)
>>>
>>> func.__code__.co_argcount
2
>>> func.__code__.co_varnames
('x', 'y')
>>>
>>> def func2(x,y=3):
... print(func2.__code__.co_varnames)
... pass # Other things
...
>>> func2(3,3)
('x', 'y')
>>>
>>>...
Test if remote TCP port is open from a shell script
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Raedwald
37.7k2626 gold badges116116 silver badges194194 bronze badges
answered Feb 27 '12 at 10:35
Alessio GaetaAl...
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
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22 Answers
22
Active
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Process all arguments except the first one (in a bash script)
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692
Use this:
echo "${@:2}"
The following syntax:
echo "${*:2}"
would work as well, but is n...
Retrieving Android API version programmatically
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edited Jan 28 '17 at 19:30
Siarhei
1,75422 gold badges1616 silver badges4949 bronze badges
...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
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203
@bogatron has it right, you can use where, it's worth noting that you can do this natively in ...
Remove an item from a dictionary when its key is unknown
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92
Be aware that you're currently testing for object identity (is only returns True if both operand...
How to replace a hash key with another key
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720
hash[:new_key] = hash.delete :old_key
...