大约有 40,000 项符合查询结果（耗时：0.0774秒） [XML]
Linking static libraries to other static libraries
...
add a comment
|
49
...
Modifying a subset of rows in a pandas dataframe
Assume I have a pandas DataFrame with two columns, A and B. I'd like to modify this DataFrame (or create a copy) so that B is always NaN whenever A is 0. How would I achieve that?
...
How to make an element width: 100% minus padding?
... fix it:
This will work in all modern browsers, and IE8+.
Here's a demo: http://jsfiddle.net/thirtydot/QkmSk/301/
.content {
width: 100%;
box-sizing: border-box;
}
The browser prefixed versions (-webkit-box-sizing, etc.) are not needed in modern browsers.
...
When should one use HTML entities?
...misconfigure something on the server and you end up serving a page with an HTTP header that says it's ISO-8859-1 and a META tag that says it's UTF-8, at least your —es will always work.
share
|
...
Android list view inside a scroll view
...="utf-8"?>
<androidx.core.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.Linea...
Broadcast receiver for checking internet connection in android app
...t;?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_p...
Go > operators
...
From the spec at http://golang.org/doc/go_spec.html, it seems that at least with integers, it's a binary shift. for example, binary 0b00001000 >> 1 would be 0b00000100, and 0b00001000 << 1 would be 0b00010000.
Go apparently doe...
How to make a website secured with https
...
What should I do to prepare my website
for https. (Do I need to alter the
code / Config)
You should keep best practices for secure coding in mind (here is a good intro: http://www.owasp.org/index.php/Secure_Coding_Principles ), otherwise all you need is a correctl...
Objective-C: Property / instance variable in category
... So if you wanted to use this on multiple instances and have each instance compute a distinct value, it wouldn't work.
Fortunately, the Objective-C runtime has this thing called Associated Objects that can do exactly what you're wanting:
#import <objc/runtime.h>
static void *MyClassResultKe...
Why does Python code use len() function instead of a length method?
I know that python has a len() function that is used to determine the size of a string, but I was wondering why it's not a method of the string object.
...