Summary of example usage of %r and %s

HTML5 supports cross-document messaging (Cross-Document Messaging). Since message communication is used, events must occur. According to the generation and consumption of events, we can find the sender and receiver, that is, Sender and Listener. Litener needs to do the following work: write a message processing function; register the message processing function: addEventListener('message', function, false); where Sender needs to do the following work: postMessage('this is a message', 'http: //www.php.cn'); The members included in the event object event include: data: passed data; origin: origin, origin includes three elements: host, protocol, port; source: source object; OK, let’s Look at an example that shows nesting pages within pages and communicating to subpages

1. What is message communication? Summary of examples of message communication

Introduction: HTML5 supports cross-document messaging (Cross-Document Messaging) . Since message communication is used, events must occur. According to the generation and consumption of events, we can find the sender and receiver, that is, Sender and Listener. Litener needs to do the following work: write a message processing function; register the message processing function: addEventListener('message', function, fal...

##2 . Detailed introduction to the functools module

##Introduction: This article mainly introduces Python Analysis of common functions of the functools module, respectively explaining the usage of functools.cmp_to_key, functools.total_ordering, functools.reduce, functools.partial, functools.update_wrapper and functools.wraps. Friends who need it can refer to the functools module that comes with Python. ...

3.

10 recommended articles about php each() function

Introduction: Two implementation methods for WeChat mini program pull-down refresh and pull-up loading, 1. Use the "onPullDownRefresh" and "onReachBottom" methods to implement pull-down refresh and pull-up loading of the mini program, 2 . Set bindscrolltoupper and bindscrolltolower in scroll-view to implement pull-down refresh and pull-up loading of WeChat applet 1. Use "onPullDownRefresh" and "...

##4.

Detailed introduction about pull-up loading

Introduction: Two types of pull-up loading for WeChat applet pull-down refresh Implementation method: 1. Use the "onPullDownRefresh" and "onReachBottom" methods to implement pull-down refresh and pull-up loading of the mini program. 2. Set bindscrolltoupper and bindscrolltolower in scroll-view to implement pull-down refresh and pull-up loading of the WeChat mini program. 1. "onPullDownRefresh" and&...

5.

What is ado.net and its simple implementation details

Introduction: ado.net is the data provider of .net framework. It mainly consists of five objects: SqlConnection, SqlCommand, SqlDataAdapter, SqlDataReader and DataSet. The structure is as follows

6.

Detailed explanation of the implementation method of pull-down refresh and pull-up loading in WeChat applet

Introduction: Two implementation methods for WeChat mini program pull-down refresh and pull-up loading. 1. Use the "onPullDownRefresh" and "onReachBottom" methods to implement pull-down refresh and pull-up loading of the mini program. 2. Set bindscrolltoupper and bindscrolltolower in scroll-view to implement pull-down refresh and pull-up loading of WeChat applet.

7. Detailed comparison of the use of mydumper and mysqldump in mysql

##Introduction : The MySQL database backup tool has its own mysqldump, which is an official backup tool of mysql. However, the third-party backup tool mydumper is used by more people due to its superior features. Next, we will verify the backup efficiency between them through testing.

8. Examples of timers and scheduled tasks in Java

Introduction: This article mainly introduces examples of Timer and TimerTask timers and scheduled tasks in Java. It is of great practical value. Friends in need can refer to it

9. Using SignaiR and Push.js to complete the message push code detailed explanation

##Introduction: ASP.NET SignalR is a library for ASP.NET developers that simplifies the process of adding real-time Web functionality to applications. Those who are interested can find out.

10.

Example analysis functools module function

Introduction: This article mainly introduces the analysis of common functions of the functools module in Python, and explains the usage of functools.cmp_to_key, functools.total_ordering, functools.reduce, functools.partial, functools.update_wrapper and functools.wraps respectively, as needed. Friends can refer to

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