大约有 30,000 项符合查询结果（耗时：0.0349秒） [XML]
Produce a random number in a range using C#
...
You can try
Random r = new Random();
int rInt = r.Nem>x m>t(0, 100); //for ints
int range = 100;
double rDouble = r.Nem>x m>tDouble()* range; //for doubles
Have a look at
Random Class, Random.Nem>x m>t Method (Int32, Int32) and Random.Nem>x m>tDouble Method
...
Removing first m>x m> characters from string?
How might one remove the first m>x m> characters from a string? For em>x m>ample, if one had a string lipsum , how would they remove the first 3 characters and get a result of sum ?
...
Is it Pythonic to use list comprehensions for just side effects?
...t is created, and it could potentially be very, very large, and therefore em>x m>pensive to create.
share
|
improve this answer
|
follow
|
...
Get the first element of each tuple in a list in Python [duplicate]
...
Use a list comprehension:
res_list = [m>x m>[0] for m>x m> in rows]
Below is a demonstration:
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> [m>x m>[0] for m>x m> in rows]
[1, 3, 5]
>>>
Alternately, you could use unpacking instead of m>x m>[0]:
res_list = [m>x m> f...
How can a Java variable be different from itself?
...
One simple way is to use Float.NaN:
float m>x m> = Float.NaN; // <--
if (m>x m> == m>x m>) {
System.out.println("Ok");
} else {
System.out.println("Not ok");
}
Not ok
You can do the same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
...
Which is better option to use for dividing an integer number by 2?
... treating it as a numerical value, use division.
Note that they are not em>x m>actly equivalent. They can give different results for negative integers. For em>x m>ample:
-5 / 2 = -2
-5 >> 1 = -3
(ideone)
share
|
...
Batch script loop
I need to em>x m>ecute a command 100-200 times, and so far my research indicates that I would either have to copy/paste 100 copies of this command, OR use a for loop, but the for loop em>x m>pects a list of items, hence I would need 200 files to operate on, or a list of 200 items, defeating the point.
...
Set value for particular cell in pandas DataFrame using indem>x m>
...
RukTech's answer, df.set_value('C', 'm>x m>', 10), is far and away faster than the options I've suggested below. However, it has been slated for deprecation.
Going forward, the recommended method is .iat/.at.
Why df.m>x m>s('C')['m>x m>']=10 does not work:
df.m>x m>s('C') by d...
.NET Global em>x m>ception handler in console application
Question: I want to define a global em>x m>ception handler for unhandled em>x m>ceptions in my console application. In asp.net, one can define one in global.asam>x m>, and in windows applications /services, one can define as below
...
What is the difference between currying and partial application?
I quite often see on the Internet various complaints that other peoples em>x m>amples of currying are not currying, but are actually just partial application.
...