recently, I looked at my eyes, but I couldn t get an expert account, so I wanted to write a script to hang it. Hospital registration can only be booked on the official Wechat page, so how to write the registration script for this official page? is there...
IDE is vs code. Practice regular expressions according to the code in the book, but keep prompting errors. The error code is Anomalous backslash in string: s expressions. String constant might be missing an r prefix. the picture is as follows ...
when I first came into contact with the database, I encountered some problems during my practice. After consulting the materials, I still couldn t find the answer. Several questions are as follows: question 1: how to place the connection for sqlite3...
upload Chinese name file to WeCom with python report error: { errcode : 44001, errmsg : empty media data, hint: [1549176653_2_aa7212a4ff64b96314b465d5f66a2b3e], more info at https: open.work.weixin.qq.c... } -sharp! usr bin python -sharpcodin...
how to write a script to grab red packets automatically by python ...
the more basic, the better. My basic skills are not very solid ...
the source of the problem: now both in the book and online are to divide a bunch of data sets with known prediction results into test sets and training sets, and then look at the accuracy between the prediction results and the real value, and report wha...
when I use the real case rate and false positive rate to calculate KS, I find that the two curves will cross, usually see that others do not cross, is my code wrong? Or is that how my data behaves? this is my picture ) from process.unsup_bin import...
write a crawler to play some time ago. to crawl the time it takes to enter the Louvre from the three main gates in real time. (that is, the 5min ") ] I thought it was a very simple p element, result, result, result is a canvas element, me:? ...
as the title says, here is my code. -sharp -*- coding: utf-8 -*- import scrapy from scrapy.http import Request import re from jingdong.items import JingdongItem from jingdong.settings import * class GoodsSpider(scrapy.Spider): name = goods ...
Please answer the questions ...
form class: from flask_wtf import FlaskForm from wtforms import StringField,PasswordField,BooleanField,SubmitField from wtforms.validators import DataRequired,Length class LoginForm(FlaskForm): username = StringField( : ,validators=[DataRequired...
problem description in CSDN, log in as a member, normally click this button to download the file a url can always crawl the file according to this url, but recently may have taken some measures, so that click on the url below can not download the ...
recently, I have done a lot of financial projects and found that sometimes there are always some small loopholes, leading to data confusion, such as calculating dividends and credits for users according to certain rules. If the calculation is wrong, the...
how events in python are created ...
A table field has 3 records returned by separate query B table field alone query has 8 records returned currently these two tables have no primary key and foreign key if you want to combine, how should the structure of the table be designed an...
when I was learning flask, I came across the extension flask-login. I don t understand the user_loader decorator very much. query many articles questions and answers all mentioned that the decorator user_loader assigns the decorative function to sel...
import KNN from numpy import * def createDataSet(): group = [[1.0,1.1],[1.0,1.0],[0,0],[0,0.1]] labels = [ A , A , B , B ] return group,labels group,labels = KNN.createDataSet() print (createDataSet()) error running Times C: User...
ladies and gentlemen, I am using tornado setcookie, but the requester is the same as my first-level domain name, for example, both are baidu.com, but our second-level domain name is different. For example, my interface server (tornado side) is I, and the...
C: Users changhao>pip install apscheduler Collecting apscheduler Exception: Traceback (most recent call last): File "c: users changhao appdata local programs python python36 lib site-packages pip _internal cli base_command.py"...
the first input box passed, but showed red. This is why both of them turn green only when the second one is also verified. Is it because both input boxes are in one form-group? < div class= "form-group " > <label class="co...
building target=nsis file=packersZhaizhishe-setup-0.0.1.exe archs=x64, Ia32 oneClick=true Error: C:UsersAdministratorAppDataLocalelectron-buildercachensisnsis-3.0.3.0Binmakensis.exe exited with code 1 Output: Command line defined: "APP_ID=org.lzj.de...
refer to https: www.jb51.net article ., modify the code as follows: but the effect is the magnification effect started on the left how to achieve the central magnification effect in the img in div? <script type="text javascript"> fu...
as mentioned, what is the difference between the two ...
there is a tree on the left side of the project, the expansion click is lazy loading, and the tree will be reset every time it is refreshed, so I want to jump back to the home page when I refresh. so how does the request listen for refresh events throug...