大约有 43,200 项符合查询结果（耗时：0.0474秒） [XML]
Can I replace groups in Java regex?
...
126
Use $n (where n is a digit) to refer to captured subsequences in replaceFirst(...). I'm assumi...
get list of pandas dataframe columns based on data type
...
12 Answers
12
Active
...
Circle line-segment collision detection algorithm?
...
// either solution may be on or off the ray so need to test both
// t1 is always the smaller value, because BOTH discriminant and
// a are nonnegative.
float t1 = (-b - discriminant)/(2*a);
float t2 = (-b + discriminant)/(2*a);
// 3x HIT cases:
// -o-> --|--&...
How can I get last characters of a string
...
18 Answers
18
Active
...
Is 0 a decimal literal or an octal literal?
...
Yes, 0 is an Octal literal in C++.
As per the C++ Standard:
2.14.2 Integer literals [lex.icon]
integer-literal:
decimal-literal integer-suffixopt
octal-literal integer-suffixopt
hexadecimal-literal integer-suffixopt
decimal-literal:
nonzero-digit
decim...
How to get 0-padded binary representation of an integer in java?
for example, for 1, 2, 128, 256 the output can be (16 digits):
17 Answers
17
...
if else statement in AngularJS templates
...late. I fetch a video list from the Youtube API. Some of the videos are in 16:9 ratio and some are in 4:3 ratio.
10 Answers...