大约有 47,000 项符合查询结果（耗时：0.0269秒） [XML]
Why does the expression 0 < 0 == 0 return False in Python?
...
113
I believe Python has special case handling for sequences of relational operators to make range...
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;
...
How to iterate through two lists in parallel?
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1437
Python 3
for f, b in zip(foo, bar):
print(f, b)
zip stops when the shorter of foo or b...
Error to install Nokogiri on OSX 10.9 Maverick?
...
You can also install Nokogiri on Mac OS X 10.9 Mavericks with full XCode Install using:
gem install nokogiri -- --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2
Update
For t...
C char array initialization
...t how you initialize an array, but for:
The first declaration:
char buf[10] = "";
is equivalent to
char buf[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
The second declaration:
char buf[10] = " ";
is equivalent to
char buf[10] = {' ', 0, 0, 0, 0, 0, 0, 0, 0, 0};
The third declaration:
char buf...
How to find the kth smallest element in the union of two sorted arrays?
...
17 Answers
17
Active
...
How to check if a number is a power of 2
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1251
There's a simple trick for this problem:
bool IsPowerOfTwo(ulong x)
{
return (x & (x...
Matplotlib scatter plot with different text at each data point
... while iterating over the values in n.
y = [2.56422, 3.77284, 3.52623, 3.51468, 3.02199]
z = [0.15, 0.3, 0.45, 0.6, 0.75]
n = [58, 651, 393, 203, 123]
fig, ax = plt.subplots()
ax.scatter(z, y)
for i, txt in enumerate(n):
ax.annotate(txt, (z[i], y[i]))
There are a lot of formatting options f...