大约有 3,300 项符合查询结果（耗时：0.0298秒） [XML]
How do you get the list of targets in a makefile?
...argets - by convention, these are targets whose name starts neither with a letter nor a digit
makes do with a single phony target
prefixes the command with @ to prevent it from being echoed before execution
Curiously, GNU make has no feature for listing just the names of targets defined in a mak...
Why does this code using random strings print “hello world”?
...t the brute force search will eventually find.
The 26 different lower-case letters form our alphabet Σ. To allow generating words of different lengths, we further add a terminator symbol ⊥ to yield an extended alphabet Σ' := Σ ∪ {⊥}.
Let α be a symbol and X a uniformly distributed random v...
How to convert a string to an integer in JavaScript?
...
Heads up. Both parseInt and parseFloat happily accepts letters. Only Number returns NaN consistently.
– Karl Pokus
Mar 14 '17 at 9:39
3
...
How to get string width on Android?
... two measurements differ (alot), for instance the font Black Chancery have letters which extend past the other letters (overlapping) - see the capital 'L'. Use paint.getTextBounds as mentioned in other answer to get pixels painted.
...
Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...estions scattered around this site.
tmp <- data.frame(x=gl(2,3, labels=letters[24:25]),
y=gl(3,1,6, labels=letters[1:3]),
z=c(1,2,3,3,3,2))
Using the tidyverse:
The new cool new way to do this is with pivot_wider from tidyr 1.0.0. It returns a data frame,...
Should I use single or double colon notation for pseudo-elements?
... the double-colon notation for pseudo-elements (e.g. ::after or ::first-letter ), and since modern browsers support the single-colon notation (e.g. :after ) for backwards compatibility, should I use solely the single-colon notation and when IE8's market share drops to a negligible level go back ...
How to check a string for specific characters?
...mments:
# Tested in Python 2.7.14
import timeit
from string import ascii_letters
from random import choice
def create_random_string(length=1000):
random_list = [choice(ascii_letters) for x in range(length)]
return ''.join(random_list)
def function_using_any(phrase):
return any(i in '...
How to check task status in Celery?
...et()? This is an instance of the AsyncResult class, but you cannot use the raw class celery.result.AsyncResult, you need to get the class from the function wrapped by app.task(). In you case you would do async_result = run_instance.AsyncResult('task-id')
– ArnauOrriols
...
Why do some claim that Java's implementation of generics is bad?
...has its generic type argument stripped off by the compiler because it is a raw type (meaning the parameterized type isn't supplied) even though it has nothing to do with the parameterized type.
I'll also mention my favourite declaration from the JDK:
public class Enum<T extends Enum<T>>...
Can I get a list of files marked --assume-unchanged?
...directory contains a file that matches that pattern (ie a single lowercase letter), then the expansion of that is the name of the file. Try adding quotes, eg "[a-z]"
– DomQ
Mar 9 '12 at 13:10
...