大约有 46,000 项符合查询结果（耗时：0.0407秒） [XML]
How does the Java 'for each' loop work?
...est A: 326,373,762 nanoseconds
Test B: 202,555,566 nanoseconds
B faster by 123,818,196 nanoseconds (37.437545972215744% faster)
I also ran this for an Integer array, and indexes are still the clear winner, but only between 18 and 25 percent faster.
For collections, iterators are faster than index...
Better way of incrementing build number?
...at (e.g. 1.0.0)
# This splits a two-decimal version string, such as "0.45.123", allowing us to increment the third position.
VERSIONNUM=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" "${PROJECT_DIR}/${INFOPLIST_FILE}")
NEWSUBVERSION=`echo $VERSIONNUM | awk -F "." '{print $3}'`
NEWS...
What is a “callback” in C and how are they implemented?
...
123
Here is an example of callbacks in C.
Let's say you want to write some code that allows regis...
c++11 Return value optimization or move? [duplicate]
...
123
All return values are either already moved or optimized out, so there is no need to explicitly...
How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
...D)
);
INSERT INTO gov(GID, Name, Address, TermBegin)
values(110, 'Bob', '123 Any St', '1-Jan-2009');
INSERT INTO STATE values(111, 'Virginia', 2000000, 110);
One-to-many (1:M)
A relationship is one-to-many if and only if one record from table A is
related to one or more records in table B. How...
Android: Difference between Parcelable and Serializable?
...ited Nov 27 '15 at 19:06
hichris123
9,5151212 gold badges5050 silver badges6666 bronze badges
answered Mar 12 '14 at 11:44
...
How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
...ion
from sklearn.preprocessing import FunctionTransformer
np.random.seed(123)
# General Functions
def func_exp(x, a, b, c):
"""Return values from a general exponential function."""
return a * np.exp(b * x) + c
def func_log(x, a, b, c):
"""Return values from a general log function...
C# code to validate email address
...e all perfectly valid forms:
cog@wheel
"cogwheel the orange"@example.com
123@$.xyz
For most use cases, a false "invalid" is much worse for your users and future proofing than a false "valid". Here's an article that used to be the accepted answer to this question (that answer has since been delet...
How do I associate file types with an iPhone application?
...
Ortwin Gentz
46.7k2222 gold badges123123 silver badges201201 bronze badges
answered May 6 '10 at 13:05
Brad Larson♦Brad Larson
...
Multiple inheritance/prototypes in JavaScript
...(B.prototype);
C.prototype.constructor = C;
function C() {
this.thisC = 123; // objC will contain this property
B.call(this);
}
C.prototype.c = 2; // objC will contain this property
var objC = new C();
B inherits the prototype from A
C inherits the prototype from B
objC is an instance of ...