大约有 16,000 项符合查询结果（耗时：0.0296秒） [XML]
How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
...
You should probably promote that comment into your actual answer. Also, from Python 2.7 and Python 3 you can do {el:0 for el in a}. (Feel free to add that into your answer as well.)
– Zooba
Oct 6 '10 at 4:37
...
subtract two times in python
...
It is possible to convert the timedelta object back to datetime ? I mean we have difference_delta .seconds(), is there any way to get back a datetime or time object ? Thx
– dejdej
Dec 11 '18 at 10:28
...
What is the best way to get all the divisors of a number?
...h
def divisorGenerator(n):
large_divisors = []
for i in xrange(1, int(math.sqrt(n) + 1)):
if n % i == 0:
yield i
if i*i != n:
large_divisors.append(n / i)
for divisor in reversed(large_divisors):
yield divisor
print list(divisorGe...
What does && mean in void *p = &&abc;
...
What a hack. If they invent a new syntax for label pointers, they should invent a new type for it as well instead of using void*.
– Mark Ransom
May 25 '11 at 17:05
...
String vs. StringBuilder
...using strings and the plus operator. This is because (like Java, as Eric points out), it internally uses StringBuilder automatically (Actually, it uses a primitive that StringBuilder also uses)
However, if what you are doing is closer to:
string a,b,c,d;
a = a + b;
a = a + c;
a = a + d;
Then ...
Difference between & and && in Java? [duplicate]
... & is not bitwise if the operands are Boolean. Only if they are integral.
– Marquis of Lorne
Nov 30 '13 at 9:27
1
...
Environment variable substitution in sed
... What if the string contains a \ followed by an n - how to stop sed from converting that into a single newline character?
– Max Waterman
Jul 24 at 9:58
add a comment
...
What is the best scripting language to embed in a C# desktop application? [closed]
...
Btw - to enable C# script support you can either integrate C# script library inside, or make C# script compilation on your own. I have done similar lightweight C# script compiler into my own project in here: sourceforge.net/p/syncproj/code/HEAD/tree/CsScript.cs C# script ...
Way to get all alphabetic chars in an array in PHP?
...ith Unicode characters. But it's good otherwise. I don't know if one could convert characters to integers and then the opposite to bypass this problem...
– NoOne
Jan 23 '16 at 11:24
...
Understanding slice notation
...ve:
a[start:stop:step] # start through not past stop, by step
The key point to remember is that the :stop value represents the first value that is not in the selected slice. So, the difference between stop and start is the number of elements selected (if step is 1, the default).
The other featur...