More details about default behavior

This article mainly introduces you to the relevant information about Python learning tips: using the default behavior of the dictionary. The introduction in the article is very detailed and has certain reference learning value for everyone. Friends who need it can take a look below. . This article introduces the relevant content about Python’s default behavior of using dictionaries. It is shared for everyone’s reference and learning. Let’s take a look at the detailed introduction: Typical code 1: from collections import defaultdict ​ ​ if name == 'main': data = defaultdict(int) data[0] += 1 print(data) output 1:defaultdict(

#1. Tips for learning Python about using the default behavior of the dictionary

#Introduction: This article mainly introduces you to Python learning tips and related information about using the default behavior of the dictionary. The article introduces it in very detail. It has certain reference and learning value for everyone. Friends who need it can take a look below.

##2. 5 must-know css custom codes

Introduction: When making pages, you often encounter the need to customize the default behavior of some tags (such as: input placeholders, etc.), but the css of these default settings are generally difficult to remember, so it is necessary to record them yourself. Here are some css that I often use to reset the default behavior. #3. html5 multimedia detailed introduction

##Introduction: 1) video element Attributes: autoplay - if present, this attribute will cause the browser to start playing the video as soon as possible; preload=none - the video will not be loaded before the user starts playing the video; preload=metadata - it will only be loaded before the user starts playing the video. Enter the metadata of the video; preload=auto - Requests the browser to download the entire video as soon as possible. The browser can ignore this request. This is the default behavior; controls - unless this attribute exists, no

4. Html5 implements how to drag and drop an image between two div elements

Introduction: Call preventDefault() to avoid the browser's default processing of data (the default behavior of the drop event is to open it as a link ) Obtain the dragged data through the dataTransfer.getData(Text) method. Interested friends can refer to it

5. Yii Quick Start (1)

Introduction: Abstract: Yii predefines a series of core application components to provide functions used in common web applications. For example, the request component is used to parse user requests and provide information such as URLs, cookies, etc. By configuring the properties of these core components, we can modify Yii's default behavior almost arbitrarily. ...

6. js prevents bubbling and default events (default behavior) detailed explanation

Introduction: js prevents bubbling and default events (default behavior) detailed explanation

7. angular ngClick prevents bubbling using default Behavior method

Introduction: angular ngClick prevents bubbling using the default behavior method

8. Prevent event bubbling

Introduction: JavaScript stops bubbling and prevents browser default behavior events compatible function myfn(e){ var evt = e ? e:window. event; } js stops bubbling function myfn(e){ window.event? window.event.cancelBubble = true : e.stopPropagation(); } js stops...

##9 . ThinkPHP3.0's runtime file branching operation_PHP tutorial

Introduction: ThinkPHP3.0's runtime file branching operation. The STRIP_RUNTIME_SPACE constant was removed in tp3.0. So it's useless. I just looked at the source code of tp and found that removing blanks and comments in the code has become the default behavior, which is beyond the control of developers

10. PHP Framework Yaf Learning Notes-Default Behavior

Introduction: PHP framework Yaf study notes----Default behavior Yaf is a PHP framework written in C language, in the form of a PHP extension. It is the work of laruence (bird brother)? laruence is PHP Development Team Member, PECL Developer. Author of Pecl extensions such as Yaf, Taint and others. ​ Yaf related articles http://www.laruence.com/tag/ya

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