大约有 40,692 项符合查询结果（耗时：0.0247秒） [XML]
Correct way to populate an Array with a Range in Ruby
...
You can create an array with a range using splat,
>> a=*(1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
using Kernel Array method,
Array (1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
or using to_a
(1..10).to_a
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
...
Oracle SELECT TOP 10 records
...e an big problem with an SQL Statement in Oracle. I want to select the TOP 10 Records ordered by STORAGE_DB which aren't in a list from an other select statement.
...
How can I convert this foreach code to Parallel.ForEach?
...8
L.BL.B
103k1717 gold badges155155 silver badges199199 bronze badges
...
Why doesn't margin:auto center an image?
The div expands to 100% as it should but the image does not center itself. Why?
8 Answers
...
Using multiple let-as within a if-statement in Swift
...aining operation:
let dict = ["latitude": 2.0 as AnyObject?, "longitude": 10.0 as AnyObject?]
let latitude = dict["latitude"]
let longitude = dict["longitude"]
if let latitude = latitude as? Double, let longitude = longitude as? Double {
print(latitude, longitude)
}
// prints: 2.0 10.0
2....
微软正式推送Win10，不满意或者不习惯可以回滚至旧版 - 资讯 - 清泛网 - 专...
微软正式推送Win10，不满意或者不习惯可以回滚至旧版今天无疑是微软新款操作系统Win10的大日子，被视作继Win7之后又一个能够带微软重回巅峰的系统作品，Win10推送全面开启，Win7、Win8用户从今日零点起就可以免费升级到Win10，...
How to initialise memory with new operator in C++?
...ut it actually has special syntax for value-initializing an array:
new int[10]();
Note that you must use the empty parentheses — you cannot, for example, use (0) or anything else (which is why this is only useful for value initialization).
This is explicitly permitted by ISO C++03 5.3.4[expr.new]...
How do HTML parses work if they're not using regexp?
...
answered Mar 8 '10 at 10:45
QuentinQuentin
755k9292 gold badges10161016 silver badges11551155 bronze badges
...
Splitting a list into N parts of approximately equal length
...oken due to rounding errors. Do not use it!!!
assert len(chunkIt([1,2,3], 10)) == 10 # fails
Here's one that could work:
def chunkIt(seq, num):
avg = len(seq) / float(num)
out = []
last = 0.0
while last < len(seq):
out.append(seq[int(last):int(last + avg)])
...
How do I tell matplotlib that I am done with a plot?
...tplotlib.pyplot as plt
import matplotlib.mlab as mlab
plt.figure()
x = [1,10]
y = [30, 1000]
plt.loglog(x, y, basex=10, basey=10, ls="-")
plt.savefig("first.ps")
plt.figure()
x = [10,100]
y = [10, 10000]
plt.loglog(x, y, basex=10, basey=10, ls="-")
plt.savefig("second.ps")
Or subplot(121) / sub...