大约有 13,914 项符合查询结果（耗时：0.0193秒） [XML]
How to convert image to byte array
...o byte[] you can do as follows:
public static byte[] converterDemo(Image x)
{
ImageConverter _imageConverter = new ImageConverter();
byte[] xByte = (byte[])_imageConverter.ConvertTo(x, typeof(byte[]));
return xByte;
}
...
How to secure an ASP.NET Web API [closed]
...{host}
Timestamp: {timestamp}
Authentication: {username}:{signature}
Example for GET request:
GET /webapi.hmac/api/values
User-Agent: Fiddler
Host: localhost
Timestamp: Thursday, August 02, 2012 3:30:32 PM
Authentication: cuongle:LohrhqqoDy6PhLrHAXi7dUVACyJZilQtlDzNbLqzXlw=
The mes...
How to display PDF file in HTML?
I have an auto generated PDF file by itext and I need to display that PDF file in HTML. My question is: How to display a local PDF file in HTML using pdf.js ? Should that PDF file be generated by some standards?
...
Efficient method to generate UUID String in JAVA (UUID.randomUUID().toString() without the dashes)
...
For example, Mongodb do not uses dashes in ObjectID. So removing dashes can be useful for api.
– Alexey Ryazhskikh
Mar 28 '15 at 13:28
...
Bin size in Matplotlib (Histogram)
...ributed, you can simply use range:
plt.hist(data, bins=range(min(data), max(data) + binwidth, binwidth))
Added to original answer
The above line works for data filled with integers only. As macrocosme points out, for floats you can use:
import numpy as np
plt.hist(data, bins=np.arange(min(dat...
How to use @Nullable and @Nonnull annotations more effectively?
... and @Nonnull annotations could be helpful in preventing NullPointerException s but they do not propagate very far.
9...
What is the equivalent of MATLAB's repmat in NumPy
I would like to execute the equivalent of the following MATLAB code using NumPy: repmat([1; 1], [1 1 1]) . How would I accomplish this?
...
Get bitcoin historical data [closed]
...ttp://api.bitcoincharts.com/v1/csv/
it is updated twice a day for active exchanges, and there is a few dead exchanges, too.
EDIT: Since there are no column headers in the CSVs, here's what they are :
column 1) the trade's timestamp,
column 2) the price,
column 3) the volume of the trade
...
How can I loop through a C++ map of maps?
... and avoids unnecessary copies.
Some favour replacing the comments with explicit definitions of reference variables (which get optimised away if unused):
for(auto const &ent1 : mymap) {
auto const &outer_key = ent1.first;
auto const &inner_map = ent1.second;
for(auto const &...
What is the advantage of using heredoc in PHP? [closed]
What is the advantage of using heredoc in PHP, and can you show an example?
5 Answers
...