大约有 47,000 项符合查询结果（耗时：0.0791秒） [XML]
How to express infinity in Ruby?
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188
If you use ruby 1.9.2, you can use:
>> Float::INFINITY #=> Infinity
>> 3 < ...
What's the (hidden) cost of Scala's lazy val?
...$0;
private String msg;
public String msg() {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
msg = "Lazy";
}
}
bitmap$0 = bitmap$0 | 1;
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Difference between break and continue statement
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21 Answers
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Splitting a list into N parts of approximately equal length
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31 Answers
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Python: print a generator expression?
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163
Quick answer:
Doing list() around a generator expression is (almost) exactly equivalent to ha...
How to pip install a package with min and max version range?
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321
You can do:
$ pip install "package>=0.2,<0.3"
And pip will look for the best match, ass...
What is the fastest integer division supporting division by zero no matter what the result is?
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107
Inspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
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urllib2.HTTPError: HTTP Error 403: Forbidden
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171
By adding a few more headers I was able to get the data:
import urllib2,cookielib
site= "htt...
Why does Math.round(0.49999999999999994) return 1?
...n Java 6 (and presumably earlier), round(x) is implemented as floor(x+0.5).1 This is a specification bug, for precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
The problem
0.5+0.49999999999999994 is exactly 1 in double precision:
static void print(do...
What is :: (double colon) in Python when subscripting sequences?
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10 Answers
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