大约有 30,000 项符合查询结果（耗时：0.0422秒） [XML]
Android - border for button
...ow code
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#FFFFFF"
android:endColor="#00FF00"
android:angle="270" />
<corners android:radius="3dp" />...
Count number of occurrences of a pattern in a file (even on same line)
When searching for number of occurrences of a string in a file, I generally use:
5 Answers
...
Concatenate two slices in Go
...s
a first argument assignable to type []byte with a second argument of
string type followed by .... This form appends the bytes of the
string.
append(s S, x ...T) S // T is the element type of S
s0 := []int{0, 0}
s1 := append(s0, 2) // append a single element s1 == []int{0, 0, 2}...
Why is UICollectionViewCell's outlet nil?
...er, binded views on it to the class, and then when I want to use and set a string to the label on the string, tha label has a nil value.
...
Update or Insert (multiple rows and columns) from subquery in PostgreSQL
... as col2, t3.foobar as col3
FROM table2 t2 INNER JOIN table3 t3 ON t2.id = t3.t2_id
WHERE t2.created_at > '2016-01-01'
) AS subquery
WHERE table1.id = subquery.col1;
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How to specify HTTP error code?
...atusCode)
// Sets the response HTTP status code to statusCode and send its string representation as the response body.
res.sendStatus(200); // equivalent to res.status(200).send('OK')
res.sendStatus(403); // equivalent to res.status(403).send('Forbidden')
res.sendStatus(404); // equivalent to res.s...
.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
...e used with generics, so you can have a strongly typed array, e.g. List<string>. Other than that, acts very much like ArrayList
Hashtable - plain old hashtable. O(1) to O(n) worst case. Can enumerate the value and keys properties, and do key/val pairs
Dictionary - same as above only strongly t...
Where and why do I have to put the “template” and “typename” keywords?
... that certain names aren't.
The "typename" keyword
The answer is: We decide how the compiler should parse this. If t::x is a dependent name, then we need to prefix it by typename to tell the compiler to parse it in a certain way. The Standard says at (14.6/2):
A name used in a template declar...
How can I remove time from date with Moment.js?
... I also had to deal with multiple timezones but found that simply stringing utc().startOf('day') was enough: moment("2017-10-09T00:00:00Z").isSameOrAfter(moment("2017-10-09 22:00:00+00:00").utc().startOf('day'), 'day'); true moment("2017-10-09T00:00:00Z").isSameOrAfter(moment("2017-10-09...
Abstract functions in Swift Language
...tocol
protocol AbstractMethodsForClassX {
func abstractMethod() -> String
}
2. Write your base class
/// It takes an implementation of the protocol as property (same like the delegate in UITableViewController does)
/// And does not implement the protocol as it does not implement the abstr...