# default_exp china
# The above line is used to declare the name of this module in nbdev. Must be the first row of the first Cell of the notebook.
Description: fight against new coronavirus (7) - Analysis of the balance between national cure and new cases.
Function: load the data/china.csv file for drawing output and anal ...
Posted on Wed, 19 Feb 2020 13:15:43 -0500 by itpvision
1, Number operation
2, Comparison operation
3, Assignment operation
4, Logical operation
5, Member operation
Basic data type
On a 32-bit machine, the number of integers is 32 bits, and the value range is - 231-231-1, that is - 2147483648-2147483647On the 64 bit system, the number of integers is 64 bit ...
Posted on Wed, 19 Feb 2020 12:23:28 -0500 by LAMP
In the process of daily operation and maintenance, it is often necessary to log in to the host to execute some commands. Sometimes it is necessary to log in to a batch of hosts to execute the same life. The efficiency of manual login execution is too slow, so it can be executed in batches through Python's paramiko module. This articl ...
Posted on Wed, 19 Feb 2020 12:22:31 -0500 by Reviresco
This article mainly introduces several common methods of parsing XML in Python, including the example introduction of using ElementTree module quickly, etc. for your friends, please refer to the following
XML (eXtensible Markup Language) refers to eXtensible Markup Language, which is ...
Posted on Wed, 19 Feb 2020 10:21:06 -0500 by jme
In the previous article, we crawled through the cover pictures of each page
For example, each of them has 18 directories, i.e. 18 cover pictures, with a total of 11 screens, i.e. 198 pictures
This article describes how to crawl the pictures in the directory of each page and save them in t ...
Posted on Wed, 19 Feb 2020 09:58:53 -0500 by avincent
Each section of Python 3-cookbook discusses the optimal solution of Python 3 in a certain kind of problem by three parts: problem, solution and discussion, or how to better use the data structure, function, class and other features of Python 3 in a certain kind of problem. This book is of great help for deepening the use of Python 3 and improvi ...
Posted on Wed, 19 Feb 2020 08:48:31 -0500 by idevlin
Today, I originally released a program to take photos with the camera gui, and then I was personally asked about the use of the global function.
I've thought about it. Let's take the camera as an example to explain the use of this function.
But let's use a small example in python to illustrate:
Posted on Wed, 19 Feb 2020 08:09:56 -0500 by blufish
There are not many Python strategies in the strategy square. A python version of grid strategy is written here. The principle of strategy is very simple. A series of grid nodes are generated in a fixed price distance within a price range. When the market changes, the price reaches a grid node price position, and a purchase order is placed. When ...
Posted on Wed, 19 Feb 2020 05:30:40 -0500 by ulrikqk
Enumeration is a collection of symbol names (enumeration members). Enumeration members should be unique and immutable. In enumeration, members can be compared in identity, and enumeration itself is iterative.
1.1 create enumeration
You can use class syntax to derive Enum and add class properties that describe values to define a new enum ...
Posted on Wed, 19 Feb 2020 05:24:05 -0500 by TexasMd91
The first step is to draw a scatter diagram with data to roughly understand its distribution law
The second step is to use the existing data to fit the curve and solve the parameters of the fitting curve
The third step is to use the fitting curve to predict the future
The following is stri ...
Posted on Wed, 19 Feb 2020 00:31:26 -0500 by pornost4r