Python functions and modules
1, function
The ‚ function is an organized and reusable code segment used to implement a single or associated function.
Model:
Function definition:
def function(parameter):
...
return ret
Function call:
function(param)
Example:
>>> def pet(pet_name, pet_type = 'dog'):
print("name=" + pet_ ...
Posted on Fri, 01 Nov 2019 23:05:15 -0400 by glansing
Vue.js source code analysis instructions v-pre instruction details
This instruction will skip the compilation process of the element and its children, that is, treat this node and its children as a static node, for example:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/v ...
Posted on Fri, 01 Nov 2019 17:11:57 -0400 by shylock
Upload files to OSS in wechat applet environment
Step 1: configure Bucket cross domain
When the client sends the form directly to OSS, it will send a request message with Origin from the browser to OSS. OSS will perform cross domain rule (CORS) validation on request messages with Origin headers. Therefore, you need to set cross domain rules for Bucket to support Post method.
...
Posted on Fri, 01 Nov 2019 15:55:46 -0400 by jpearson
The elementUI dynamically generates several rows and columns table-2
The elementUI dynamically generates several rows and columns of table s
Now there is a requirement: automatically generate table s of corresponding size according to the row and column selected by the user. The following implementation is not perfect, because the data is not correct, but the dynamic effect is achieved, just to provide an implem ...
Posted on Fri, 01 Nov 2019 12:39:10 -0400 by Dm7
Automatic layout of 3D model by matrix change
In mathematics, a matrix is a rectangular array of numbers, symbols, or expressions arranged in rows and columns. Any matrix can be multiplied by elements by scalars of related fields. The main application of matrix is to express linear transformation, that is, the generalization of linear functions such as f (x) = 4x. For example, the rotating ...
Posted on Fri, 01 Nov 2019 12:16:32 -0400 by jamesflynn
How to create a RESTful WCF Service
Original address: http://www.cnblogs.com/jfzhu/p/4044813.html
Reprint please indicate the source
(I) web.config file
To create a REST WCF Service, endpoint binding requires webHttpBinding. See Differences between webHttpBinding, basicHttpBinding and wsHttpBinding.
web.config
<?xml version="1.0"?>
<configuration>
...
Posted on Fri, 01 Nov 2019 11:45:50 -0400 by Ryyo
loadrunner script parsing & writing process
loadrunner script resolution:
The following is a script analysis recorded by loadrunner about the system logging in and clicking demand management module to initiate demand collection.
1. Enter user name password and verification code to log in
2. Click demand management module
3. Fill in the in ...
Posted on Fri, 01 Nov 2019 10:23:08 -0400 by tommy1987
Cross domain modification of iframe page content
principle
The primary site embeds the proxy page and transfers data to the proxy page. The proxy page operates the DOM of the target page according to the data of the primary site. Because the proxy page and the target page share the same domain, the proxy page can obtain and operate the document object of the target page.
Prerequisite
You need ...
Posted on Fri, 01 Nov 2019 06:27:41 -0400 by csckid
Single sign on - API certification system Passport
install
composer require laravel/passport=~4.0
notes:
1) ensure that unzip, zip and other commands are installed on the system.
2) there is Authentication required (packagist.phpcomposer.com) problem in composer installation. Modify the source in composer.json, repositories.packagist.url = https://packagist.laravel-china.org.
Register service p ...
Posted on Fri, 01 Nov 2019 06:24:28 -0400 by Octave91
Obtaining and verifying token of Web Service Interface
Before the project, the APP interface problem was used. In the project, webservice and websocket are generally used to realize the receiving and sending of interface data, that is, the transmission of information.
web is receiving and sending data in real time
Let's talk about the implementation of webservice interfac ...
Posted on Fri, 01 Nov 2019 05:47:00 -0400 by chanzilla