大约有 5,500 项符合查询结果（耗时：0.0188秒） [XML]
New Array from Index Range Swift
...;1] // returns [1] assert(arr[safe: 0..<1] == [1])
arr[safe: 2..<100] // returns [3] assert(arr[safe: 2..<100] == [3])
arr[safe: -100..<0] // returns [] assert(arr[safe: -100..<0] == [])
arr[safe: 0, 1] // returns [1] assert(arr[safe: 0, 1] == [1])
arr[safe: 2, 100] //...
How To Save Canvas As An Image With canvas.toDataURL()?
....fillStyle = "rgba(125, 46, 138, 0.5)";
ctx.fillRect(25,25,100,100);
ctx.fillStyle = "rgba( 0, 146, 38, 0.5)";
ctx.fillRect(58, 74, 125, 100);
}
function to_image(){
var canvas = document.getElementById("thecan...
Draw multi-line text to Canvas
...text on the next line. So something like this:
canvas.drawText("This is", 100, 100, mTextPaint);
canvas.drawText("multi-line", 100, 150, mTextPaint);
canvas.drawText("text", 100, 200, mTextPaint);
share
|
...
How is location accuracy measured in Android?
...
@AidenStrydom, no. If the accuracy returns 1000, it means there is a 68% chance that the real location is within 1000 meters of the provided location.
– karl
Jul 31 '13 at 23:00
...
Convert a negative number to a positive one in JavaScript
...
@omgaz They aren't the same... var x = -100; ~x+1 === 100 but var x = 100; ~x+1 === -100. Math.abs always makes it a positive whilst taking the ones complement simply inverts the sign.
– jduncanator
Dec 18 '14 at 12:53
...
Python style - line continuation with strings? [duplicate]
...
Sven MarnachSven Marnach
446k100100 gold badges833833 silver badges753753 bronze badges
...
Get last n lines of a file, similar to tail
...Here is my answer. Pure python. Using timeit it seems pretty fast. Tailing 100 lines of a log file that has 100,000 lines:
>>> timeit.timeit('tail.tail(f, 100, 4098)', 'import tail; f = open("log.txt", "r");', number=10)
0.0014600753784179688
>>> timeit.timeit('tail.tail(f, 100, 4...
How to clone all repos at once from GitHub?
...E=1
curl "https://api.github.com/$CNTX/$NAME/repos?page=$PAGE&per_page=100" |
grep -e 'git_url*' |
cut -d \" -f 4 |
xargs -L1 git clone
Set CNTX=users and NAME=yourusername, to download all your repositories.
Set CNTX=orgs and NAME=yourorgname, to download all repositories of your organi...
Creating a range of dates in Python
...with today, and going back an arbitrary number of days, say, in my example 100 days. Is there a better way to do it than this?
...
Change C++/CLI project to another framework than 4.0 with vs2010
...xplanation by itself. The core issue is that the C runtime library (msvcrt100.dll and up) contains .NET code to support managed code execution. The crucial detail is a module initializer that ensures the CRT is correctly initialized in program that uses C++/CLI code. That code always targets .NET...