大约有 42,000 项符合查询结果（耗时：0.0688秒） [XML]
Fastest way to convert an iterator to a list
... that there is no better way in python. It's tedious to have to edit both sides of an expression only to be able to slice or index it. (very common in python3, if it's a pure expression like zip, or map with a pure function)
– Jo So
Oct 24 '15 at 5:29
...
Matplotlib connect scatterplot points with line - Python
...
In addition to what provided in the other answers, the keyword "zorder" allows one to decide the order in which different objects are plotted vertically.
E.g.:
plt.plot(x,y,zorder=1)
plt.scatter(x,y,zorder=2)
plots the scatter symbols on top of ...
How to test an Internet connection with bash?
...
Without ping
#!/bin/bash
wget -q --spider http://google.com
if [ $? -eq 0 ]; then
echo "Online"
else
echo "Offline"
fi
-q : Silence mode
--spider : don't get, just check page availability
$? : shell return code
0 : shell "All OK" code
Without wget...
width:auto for fields
Newbie CSS question. I thought width:auto for a display:block element meant 'fill available space'. However for an <input> element this doesn't seem to be the case. For example:
...
how to append a list object to another
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Correct mime type for .mp4
...
According to RFC 4337 § 2, video/mp4 is indeed the correct Content-Type for MPEG-4 video.
Generally, you can find official MIME definitions by searching for the file extension and "IETF" or "RFC". The RFC (Request for Comments) articles published by th...
Moq mock method with out specifying input parameter
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
JSON.parse unexpected character error
...gify({"balance":0,"count":0,"time":1323973673061,"firstname":"howard","userId":5383,"localid":1,"freeExpiration":0,"status":false}));
or if you have JSON stored in some variable:
JSON.parse(JSON.stringify(yourJSONobject));
...
XPath with multiple conditions
...and author[starts-with(.,'James Small')]]
It is a good rule to try to avoid using the // pseudo-operator whenever possible, because its evaluation can typically be very slow.
Also:
./somename
is equivalent to:
somename
so it is recommended to use the latter.
...
iPhone Navigation Bar Title text color
...able from the original produced by Apple's code, except for the color.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
{
// this will appear as the title in the naviga...