大约有 46,000 项符合查询结果（耗时：0.0464秒） [XML]
How to position a DIV in a specific coordinates?
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175
Script its left and top properties as the number of pixels from the left edge and top edge res...
Android : Check whether the phone is dual SIM
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184
Update 23 March'15 :
Official multiple SIM API is available now from Android 5.1 onwards ...
Python: Append item to list N times
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129
For immutable data types:
l = [0] * 100
# [0, 0, 0, 0, 0, ...]
l = ['foo'] * 100
# ['foo', '...
Accessing localhost:port from Android emulator
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You can access your host machine with the IP address "10.0.2.2".
This has been designed in this way by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "http://10.0.2.2:<hostport>".
If your emulator must ...
Regex to check whether a string contains only numbers [duplicate]
I get false on both "123" and "123f" . I would like to check if the hash only contains numbers. Did I miss something?
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The simplest way to resize an UIImage?
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31 Answers
31
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How to sort objects by multiple keys in Python?
...ns):
from operator import itemgetter
comparers = [((itemgetter(col[1:].strip()), -1) if col.startswith('-') else
(itemgetter(col.strip()), 1)) for col in columns]
def comparer(left, right):
for fn, mult in comparers:
result = cmp(fn(left), fn(right))...
Convert unix time to readable date in pandas dataframe
... to be seconds since epoch.
In [20]: df = DataFrame(data['values'])
In [21]: df.columns = ["date","price"]
In [22]: df
Out[22]:
<class 'pandas.core.frame.DataFrame'>
Int64Index: 358 entries, 0 to 357
Data columns (total 2 columns):
date 358 non-null values
price 358 non-null value...
How to set current working directory to the directory of the script in bash?
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11 Answers
11
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How to add new item to hash
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Create the hash:
hash = {:item1 => 1}
Add a new item to it:
hash[:item2] = 2
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