大约有 30,000 项符合查询结果（耗时：0.0312秒） [XML]
adding noise to a signal in python
...umpy as np
import matplotlib.pyplot as plt
t = np.linspace(1, 100, 1000)
x_volts = 10*np.sin(t/(2*np.pi))
plt.subplot(3,1,1)
plt.plot(t, x_volts)
plt.title('Signal')
plt.ylabel('Voltage (V)')
plt.xlabel('Time (s)')
plt.show()
x_watts = x_volts ** 2
plt.subplot(3,1,2)
plt.plot(t, x_watts)
plt.title...
How to get datetime in JavaScript?
...
function pad_2(number)
{
return (number < 10 ? '0' : '') + number;
}
function hours(date)
{
var hours = date.getHours();
if(hours > 12)
return hours - 12; // Substract 12 hours when 13:00 and more
return h...
VB.NET equivalent to C# var keyword [duplicate]
...
UuDdLrLrSs
6,47577 gold badges3232 silver badges5353 bronze badges
answered Mar 19 '10 at 15:42
Adam RobinsonAdam Robinson
...
How do I remove code duplication between similar const and non-const member functions?
...& get() const {
return c;
}
char & get() {
return const_cast<char &>(static_cast<const C &>(*this).get());
}
char c;
};
The two casts and function call may be ugly but it's correct. Meyers has a thorough explanation why.
...
Best way to store date/time in mongodb
...
Dan Dascalescu
98.3k3636 gold badges263263 silver badges333333 bronze badges
answered Sep 23 '10 at 13:28
Niels van der RestNiels van der R...
Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t
...
answered Feb 2 '14 at 17:32
user3141889user3141889
67177 silver badges33 bronze badges
...
Node.js Mongoose.js string to ObjectId function
... talentedmrjonestalentedmrjones
4,97511 gold badge2323 silver badges2525 bronze badges
1
...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
... |
edited May 9 '19 at 20:32
community wiki
11 ...
Sorting a tab delimited file
... Ruby. Here's some example code:
#!/usr/bin/perl -w
use strict;
my $sort_field = 2;
my $split_regex = qr{\s+};
my @data;
push @data, "7 8\t 9";
push @data, "4 5\t 6";
push @data, "1 2\t 3";
my @sorted_data =
map { $_->[1] }
sort { $a->[0] <=> $b->[0] }
map { [ ( sp...
Jackson - Deserialize using generic class
...nStaxMan
98.6k2828 gold badges184184 silver badges223223 bronze badges
2
...