大约有 39,200 项符合查询结果（耗时：0.0254秒） [XML]
What is the difference between UTF-8 and ISO-8859-1?
... is not backwards compatible with ISO-8859-1:
#!/usr/bin/env python3
c = chr(0xa9)
print(c)
print(c.encode('utf-8'))
print(c.encode('iso-8859-1'))
Output:
©
b'\xc2\xa9'
b'\xa9'
share
|
improv...
Remove characters except digits from string using Python?
...n table (a string of length 256) which in this case is the same as ''.join(chr(x) for x in range(256)) (just faster to make;-). .translate applies the translation table (which here is irrelevant since all essentially means identity) AND deletes characters present in the second argument -- the key pa...
Create an empty data.frame
...t
$ Factors : Factor w/ 0 levels:
$ Logicals : logi
$ Characters: chr
N.B. :
Initializing a data.frame with an empty column of the wrong type does not prevent further additions of rows having columns of different types.
This method is just a bit safer in the sense that you'll have the c...
How to remove \xa0 from string in Python?
...
\xa0 is actually non-breaking space in Latin1 (ISO 8859-1), also chr(160). You should replace it with a space.
string = string.replace(u'\xa0', u' ')
When .encode('utf-8'), it will encode the unicode to utf-8, that means every unicode could be represented by 1 to 4 bytes. For this case, ...
Removing all non-numeric characters from string in Python
...eed some prep:
>>> import string
>>> allchars = ''.join(chr(i) for i in xrange(256))
>>> identity = string.maketrans('', '')
>>> nondigits = allchars.translate(identity, string.digits)
>>> s = 'abc123def456'
>>> s.translate(identity, nondigits)
...
How do I download a file over HTTP using Python?
...]" % (file_size_dl, file_size_dl * 100. / file_size)
status = status + chr(8)*(len(status)+1)
print status,
f.close()
share
|
improve this answer
|
follow
...
Explode PHP string by new line
...
try
explode(chr(10), $_POST['skuList']);
share
|
improve this answer
|
follow
|
...
filter for complete cases in data.frame using dplyr (case-wise deletion)
... - attr(*, "na.action")= 'omit' Named int 3 4
## ..- attr(*, "names")= chr "3" "4"
ADDED Have updated to reflect latest version of dplyr and comments.
ADDED Have updated to reflect latest version of tidyr and comments.
...
Convert bytes to a string
...is easy:
>>> bytes_data = [112, 52, 52]
>>> "".join(map(chr, bytes_data))
'p44'
share
|
improve this answer
|
follow
|
...
Remove non-utf8 characters from string
...f the form 11xxxxxx.
// Encode as 11000011 10xxxxxx.
return "\xC3".chr(ord($captures[3])-64);
}
}
preg_replace_callback($regex, "utf8replacer", $text);
EDIT:
!empty(x) will match non-empty values ("0" is considered empty).
x != "" will match non-empty values, including "0".
x !== "" wi...