大约有 16,000 项符合查询结果(耗时:0.0358秒) [XML]
From Arraylist to Array
I want to know if it is safe/advisable to convert from ArrayList to Array?
I have a text file with each line a string:
9 An...
How to convert float to varchar in SQL Server
I have a float column with numbers of different length and I'm trying to convert them to varchar.
15 Answers
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Find the nth occurrence of substring in a string
...on is going to be very inefficient for large strings when the match you're interested is near the beginning. It always looks at the whole string. It's clever but I wouldn't recommend this to someone who is new to Python and just wants to learn a good way to do it.
– Mark Byers
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What is the type of lambda when deduced with “auto” in C++11?
...().
A lambda which captures no variables (nothing inside the []'s) can be converted into a function pointer (MSVC2010 doesn't support this, if that's your compiler, but this conversion is part of the standard).
But the actual type of the lambda isn't a function pointer. It's some unspecified funct...
How to resize a custom view programmatically?
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Whether the in value should be converted into dp value or it would work.
– Dory
Nov 20 '13 at 5:28
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Format timedelta to string
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You can just convert the timedelta to a string with str(). Here's an example:
import datetime
start = datetime.datetime(2009,2,10,14,00)
end = datetime.datetime(2009,2,10,16,00)
delta = end-start
print(str(delta))
# prints 2:00:00
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Identify if a string is a number
...(object Expression)
{
double retNum;
bool isNum = Double.TryParse(Convert.ToString(Expression), System.Globalization.NumberStyles.Any, System.Globalization.NumberFormatInfo.InvariantInfo, out retNum);
return isNum;
}
But you can also use;
bool b1 = Microsoft.VisualBasic.Information.I...
Encrypting & Decrypting a String in C# [duplicate]
... cryptoStream.Close();
return Convert.ToBase64String(cipherTextBytes);
}
}
}
}
}
}
public static string Decrypt(string cipherText, string ...
AttributeError: 'module' object has no attribute 'urlopen'
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A Python 2+3 compatible solution is:
import sys
if sys.version_info[0] == 3:
from urllib.request import urlopen
else:
# Not Python 3 - today, it is most likely to be Python 2
# But note that this might need an update when Python 4
# might be around one...
How to assign text size in sp value using java code
...R.dimen.my_text_size_in_sp)); Getting your text size this way will already convert SP to PX, taking both screen density and text scale factor in account.
– Ciske Boekelo
Aug 12 '15 at 9:30
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