大约有 47,000 项符合查询结果（耗时：0.0565秒） [XML]
What is time_t ultimately a typedef to?
I searched my Linux box and saw this typedef:
10 Answers
10
...
What is the correct syntax for 'else if'?
... python "else if" is spelled "elif".
Also, you need a colon after the elif and the else.
Simple answer to a simple question. I had the same problem, when I first started (in the last couple of weeks).
So your code should read:
def function(a):
if a == '1':
print('1a')
elif a == '2...
Return multiple columns from pandas apply()
I have a pandas DataFrame, df_test . It contains a column 'size' which represents size in bytes. I've calculated KB, MB, and GB using the following code:
...
Python json.loads shows ValueError: Extra data
I am getting some data from a JSON file "new.json", and I want to filter some data and store it into a new JSON file. Here is my code:
...
What is the difference between class and instance attributes?
...
Only the mutable types are shared. Like for int and str they still attached with each instances rather than class.
– Babu
Jul 17 '14 at 11:59
11
...
Asynchronous Requests with Python requests
...was written. However, you could just replace requests with grequests below and it should work.
I've left this answer as is to reflect the original question which was about using requests < v0.13.0.
To do multiple tasks with async.map asynchronously you have to:
Define a function for what yo...
How do I clone a range of array elements to a new array?
...reate a new array containing all the elements from X that begin at index 3 and ends in index 7. Sure I can easily write a loop that will do it for me but I would like to keep my code as clean as possible. Is there a method in C# that can do it for me?
...
What is a magic number, and why is it bad? [closed]
...tion("password");
}
}
}
It improves readability of the code and it's easier to maintain. Imagine the case where I set the size of the password field in the GUI. If I use a magic number, whenever the max size changes, I have to change in two code locations. If I forget one, this will l...
Python (and Python C API): __new__ versus __init__
...stion I'm about to ask seems to be a duplicate of Python's use of __new__ and __init__? , but regardless, it's still unclear to me exactly what the practical difference between __new__ and __init__ is.
...
Cosmic Rays: what is the probability they will affect a program?
Once again I was in a design review, and encountered the claim that the probability of a particular scenario was "less than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is.
...