大约有 5,000 项符合查询结果（耗时：0.0171秒） [XML]
Equivalent of LIMIT and OFFSET for SQL Server?
...o select 11 to 20 rows in SQL Server:
SELECT email FROM emailTable
WHERE user_id=3
ORDER BY Id
OFFSET 10 ROWS
FETCH NEXT 10 ROWS ONLY;
OFFSET: number of skipped rows
NEXT: required number of next rows
Reference: https://docs.microsoft.com/en-us/sql/t-sql/queries/select-order-by-clause-transac...
Should I pass a shared_ptr by reference? [duplicate]
...e to do the same for std::shared_ptr in order to get some performance gain ranging from irrelevant to substantial, depending on the exact situation. If const whatever& is black magic to you, stay away from it, it's not worth the risk.
– wolfgang
Dec 5 '11 a...
What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
...bounded functions f(.) and bounded universal approximators on I=[0,1] with range again I=[0,1] for example that are parametrized by a real sequence of compact support U(.,a) with the property that there exists a sequence of sequences with
lim sup { |f(x) - U(x,a(k) ) | : x } =0
and you draw examp...
Escape regex special characters in a Python string
...f the first parenthesized group.)
The r in front of r'([\"])' means it's a raw string. Raw strings use different
rules for escaping backslashes. To write ([\"]) as a plain string, you'd need to
double all the backslashes and write '([\\"])'. Raw strings are friendlier when
you're writing regular exp...
What is the perfect counterpart in Python for “while not EOF”
...sure performant reads.
You can do the same with the stdin (no need to use raw_input():
import sys
for line in sys.stdin:
do_something()
To complete the picture, binary reads can be done with:
from functools import partial
with open('somefile', 'rb') as openfileobject:
for chunk in ite...
How to read keyboard-input?
...
try
raw_input('Enter your input:') # If you use Python 2
input('Enter your input:') # If you use Python 3
and if you want to have a numeric value
just convert it:
try:
mode=int(raw_input('Input:'))
except ValueErro...
Node.js: how to consume SOAP XML web service
...re I could send a request and make sure it worked and I could also use the Raw or HTML data to help me build an external request.
Raw from SoapUI for my request
POST http://192.168.0.28:10005/MainService/WindowsService HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: text/xml;charset=UTF-8
SOA...
Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]
... a: 3
Enter b: 7
a + b as strings: 37
a + b as integers: 10
with:
a = raw_input("Enter a: ")
b = raw_input("Enter b: ")
print "a + b as strings: " + a + b # + everywhere is ok since all are strings
a = int(a)
b = int(b)
c = a + b
print "a + b as integers: ", c
...
Use HTML5 to resize an image before upload
... canvas.height = height;
canvas.getContext('2d').drawImage(image, 0, 0, width, height);
var dataUrl = canvas.toDataURL('image/jpeg');
var resizedImage = dataURLToBlob(dataUrl);
$.event.trigger({
type: "image...
Why do I get TypeError: can't multiply sequence by non-int of type 'float'?
...
raw_input returns a string (a sequence of characters). In Python, multiplying a string and a float makes no defined meaning (while multiplying a string and an integer has a meaning: "AB" * 3 is "ABABAB"; how much is "L" * 3.1...