大约有 40,000 项符合查询结果(耗时:0.0735秒) [XML]
How to instantiate a File object in JavaScript?
...jRKjokDhgfsKtG1527053050.jpg"
size:0
type:"image/jpg"
webkitRelativePath:""__proto__:File
But the size of the object is wrong ...
Why i need to do that ?
For example to retransmit
an image form already uploaded, during a product update, along with additional images added during the update
...
How to disable Golang unused import error
...
Adding an underscore (_) before a package name will ignore the unused import error.
Here is an example of how you could use it:
import (
"log"
"database/sql"
_ "github.com/go-sql-driver/mysql"
)
To import a package solely for i...
Encrypt & Decrypt using PyCrypto AES 256
...rt Random
from Crypto.Cipher import AES
class AESCipher(object):
def __init__(self, key):
self.bs = AES.block_size
self.key = hashlib.sha256(key.encode()).digest()
def encrypt(self, raw):
raw = self._pad(raw)
iv = Random.new().read(AES.block_size)
...
Backbone.js fetch with parameters
... methodMap[method];
// Default JSON-request options.
var params = _.extend({
type: type,
dataType: 'json',
processData: false
}, options);
// Ensure that we have a URL.
if (!params.url) {
params.url = getUrl(model) || urlError();
}
...
Add params to given URL in Python
...koverflow.com/search?q=question"
params = {'lang':'en','tag':'python'}
url_parts = list(urlparse.urlparse(url))
query = dict(urlparse.parse_qsl(url_parts[4]))
query.update(params)
url_parts[4] = urlencode(query)
print(urlparse.urlunparse(url_parts))
ParseResult, the result of urlparse(), is rea...
throw Error('msg') vs throw new Error('msg')
... console, they look identical. Same properties on the object and the same __proto__ chain. Almost seems like Error acts like a factory.
...
What are the differences between -std=c++11 and -std=gnu++11?
...using the MinGW compiler, I need the extensions for a working Boost.Lexical_Cast. But, as long as you don't use any of them, you are better off sticking to the standard without extensions for maximum portability. This might come in handy if you find yourself forced to change compiler.
...
How to determine SSL cert expiration date from a PEM encoded certificate?
... "$pem"
done | sort
Sample output:
2015-12-16: /etc/ssl/certs/Staat_der_Nederlanden_Root_CA.pem
2016-03-22: /etc/ssl/certs/CA_Disig.pem
2016-08-14: /etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_S.pem
share
...
Numpy: find first index of value fast
...The code will be compiled so it will be fast.
@jit(nopython=True)
def find_first(item, vec):
"""return the index of the first occurence of item in vec"""
for i in xrange(len(vec)):
if item == vec[i]:
return i
return -1
and then:
>>> a = array([1,7,8,32])
...
How do I convert this list of dictionaries to a csv file?
...
keys = toCSV[0].keys()
with open('people.csv', 'w', newline='') as output_file:
dict_writer = csv.DictWriter(output_file, keys)
dict_writer.writeheader()
dict_writer.writerows(toCSV)
EDIT: My prior solution doesn't handle the order. As noted by Wilduck, DictWriter is more appropriate...
