Python novice crawler 3: crawling PPT template

Crawling website: first PPT( http://www.1ppt.com/ )This website really has a conscience As always, start with the last successful source code: import requests import urllib import os from bs4 import BeautifulSoup from fake_useragent import UserAgent def getPPT(url):      f = requests.get(url,headers=headers)   #Send out GET request      f.enc ...

Posted by accident on Sun, 15 Mar 2020 22:43:42 -0700

JavaScript warning (alert message dialog)

1 alert (string or variable); When we visit the website, we sometimes pop up a small window with a piece of prompt message written on it. If you don't click "OK", you can't do anything to the web page. This small window is implemented by using alert. The above is the alert() syntax 1 <!DOCTYPE html> 2 <html> 3 ...

Posted by $kevan on Fri, 13 Mar 2020 07:19:01 -0700

0312 java interface test rest-assured

background java programmers generally write that back-end services are JavaWeb-type projects, mainly including Http interface and dubbo interface, Http interface generally uses the resting style, so how to quickly test the resting interface on a third-party testing framework? The rest-assured framework is a good tool.Like a soldier's triangula ...

Posted by bugsuperstar37 on Thu, 12 Mar 2020 10:05:16 -0700

Learn java - Day12 - InputStream details of IO stream

1 IO BigDecimal/BigInteger Summary: BigDecimal: used to solve precise floating-point operations. BigInteger: used to solve very large integer operations. Create object: BigDecimal.valueOf(2); Common method: add(BigDecimal bd): add Subtract (BigDecimal BD): subtract multiply(BigDecimal bd): do ...

Posted by archangel_617b on Tue, 10 Mar 2020 00:50:08 -0700

Home Credit Default Risk default risk forecast, kaggle competition, beginner, LB 0.749

Home Credit Default Risk conclusion background knowledge data set Data analysis Balance degree Missing data data type Outliers Fill in missing values modeling Logistic Regression LightGBM Feature importance Appendix: meaning of each field conclusion The data is provided by Home Credit (Chine ...

Posted by rehfeld on Mon, 09 Mar 2020 22:23:40 -0700

An example of getting started with ZYNQ -- timer interruption and program solidification

I. Preface In the APU system, the CPU performs the operation in the way of serial code execution, and the software mode is difficult to achieve accurate timing, so it is a better choice to call the internal timer hardware to complete timing. In this paper, timer interrupt control LED periodic flicker as an example to learn the use of private ti ...

Posted by shumway on Sun, 08 Mar 2020 04:30:32 -0700

Python data analysis library -- Numpy:ndarray object, index, array transpose

NumPy's ndarray: a multidimensional array object ndarray object is an N-dimensional array object and a flexible and fast big data container You can use the array of ndarray to perform some mathematical operations on the whole block of data ndarray is a general multi-dimensional container of homogeneo ...

Posted by niall_buckley on Fri, 06 Mar 2020 03:40:09 -0800

Route authority management based on vue

Preface (this project is based on Vue CLI and layout, but the layout of background system is basically the same.) There is a requirement to modify the existing management background to present different menu bars (in fact, routes) according to different users, as shown in the following figure thinki ...

Posted by Volte6 on Tue, 03 Mar 2020 00:37:38 -0800

The magic widget of Flutter tips

It's just to share a little skill of flutter. Of course, it's not only applicable to flutter, but also to other devices like Android. In order to quickly realize the requirements of xx design, we can take out the system's own widget s and change them into our own, with speed and style, but men can't s ...

Posted by johnpdmccall on Tue, 03 Mar 2020 00:18:03 -0800

Strings: regular expressions

5, split() The split() method breaks the input string into an array of string objects, with the break boundary determined by the following regular expression: String[] split(CharSequence input); String[] split(CharSequence input, int limit); This is a quick and convenient way to break the input te ...

Posted by theslinky on Mon, 02 Mar 2020 19:54:27 -0800