大约有 43,200 项符合查询结果(耗时:0.0469秒) [XML]
rreplace - How to replace the last occurrence of an expression in a string?
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197
>>> def rreplace(s, old, new, occurrence):
... li = s.rsplit(old, occurrence)
... r...
Bash tool to get nth line from a file
Is there a "canonical" way of doing that? I've been using head -n | tail -1 which does the trick, but I've been wondering if there's a Bash tool that specifically extracts a line (or a range of lines) from a file.
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How to pass optional arguments to a method in C++?
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145
Here is an example of passing mode as optional parameter
void myfunc(int blah, int mode = 0)...
Forced naming of parameters in Python
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11 Answers
11
Active
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What's the difference between HEAD^ and HEAD~ in Git?
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15 Answers
15
Active
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Is there a way to check if int is legal enum in C#?
... page:
using System;
[Flags] public enum PetType
{
None = 0, Dog = 1, Cat = 2, Rodent = 4, Bird = 8, Reptile = 16, Other = 32
};
public class Example
{
public static void Main()
{
object value;
// Call IsDefined with underlying integral value of member.
value = ...
How to convert list of key-value tuples into dictionary?
...p and zip it. ValueError: dictionary update sequence element #0 has length 1916; 2 is required
THAT is your actual question.
The answer is that the elements of your list are not what you think they are. If you type myList[0] you will find that the first element of your list is not a two-tuple, e....
How do you find the last day of the month? [duplicate]
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241
How about using DaysInMonth:
DateTime createDate = new DateTime (year, month,
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Understanding the map function
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451
map isn't particularly pythonic. I would recommend using list comprehensions instead:
map(f, it...
