[br > 0:4, 4:7, 5 ] there is a rule here. From row 1 to x, I want to make up 0:4, 4:7, 11:12 0:4, that is, four starting at zero. 4:7 is from 4 to the last 2 7:9 is from 7 to the last 3: , and so on, to form a dictionary or list ...
the crawler encountered an unknown parameter , which is used to request a URL. How to break a URL like:.. talk ExamCaseReportGeneral.jspx?case_id=612e24bf-eae7-4d22-ba4d-9d0169a5a5e6 ...
use pymysql to connect to mysql database and extract data. If the amount of data is more than 500000 +, the speed is relatively slow. I d like to ask about the ways to speed up in addition to optimizing sql statements. here I use pd.read_sql, directly...
The code is basically typed according to the flask book whose cover is a dog . @users.before_app_request def before_request(): if current_user.is_authenticated: current_user.ping() if not current_user.confirmed an...
how numpy reads garbled csv files, the csv file itself is garbled, as shown in the figure. np.loadtxt( f.csv , dtype=str,delimiter= , , unpack=True) ...
I have a document with a content similar to the line 1 is: a-b-o the line 2 is: not found the line 3 is: not found the line 4 is: a-c-k the line 5 is: a-d-g a-h-o the line 6 is: a-g-i the line 7 is: not found this. I want to use python to get success...
I, Xiaobai, want to do a P2P file transfer website in the local area network during the winter vacation. The assumption is: after entering this web page, you can choose to send or wait for receiving. After choosing to send, you can send files to other us...
for example, as shown in the code, there are three tables, the city, the area, the house, the city to which the house belongs and the area to which the house belongs. I hope that when entering data in the background, I select the option that the city ca...
function preprocess(imageData) { const { width, height, data } = imageData; const dataTensor = ndarray(new Float32Array(data), [width, height, 4]) const dataProcessedTensor = ndarra...
I want to click the mouse to specify the coordinate location and specify the number of times. is there any shortcut? def click (num): mouseclick(xxx,xxx) ...
1. Visit a web page, use the browser to download the embedded seed file, the seed file size is normal, with Thunderbolt tool can also be downloaded normally, but crawled with python crawler, and the downloaded data size is 0? 2. This is the code I wrot...
ip direct access with port is normal, the speed is OK, the access speed of domain name is very slow, sometimes it can t be opened, how to optimize it server { listen 80; server_name www.xxx.com; rewrite ^(.*) https: ...
these are the data of my two tables: flask: sqlalchemy: : ...
shenjianlin@iZm5eirdrun3ajzx3iii0wZ:~ pycharm-2018.1.3 bin$. pycharm.sh & [1] 3684 shenjianlin@iZm5eirdrun3ajzx3iii0wZ:~ pycharm-2018.1.3 bin$ Startup Error: Unable to detect graphics environment I said to start this pycharm on the server has bee...
my django project Subject accounts courses views.py tests test_models.py subject test_models.py: from django.core.urlresolvers import reverse from django.test import TestCase from .models import MultiSub...
excuse me, how does the pyspider, running on the centos7.2 server open webui? through the public network IP? config is written like this { "scheduler" : { "xmlrpc-host": "0.0.0.0", "delete-time&qu...
I want to use Python to build an android server. Android mainly uploads some keywords, then the Python server accepts these keywords, searches in the database, and then models the algorithm of data mining and returns the modeling results to Android. Is t...
for example, there is a form like this: <input type="text" name="user[name]" value="bob"> is parsed into the following format in rails params { user: { name: "bob" } } so there are two questions I ...
write with Flask. When you get to the front end of the render_template () data page, you suddenly start to report dead errors. No matter how you adjust the back end, it is useless. Which god helps to find out the reason, thank you report error: : "i...
class W (): headers = {"user-agent": UserAgent().random,} def a(self): print(self.headers) pass def b(self): print(self.headers) print(self.headers) pass pass aa = W (); aa.b () aa.b () results { user-agent : M...
topic description Fermat s Great Theorem (Fermat s Last Theorem) states that no integer a, b, and c can make: a n + b n = cantilever, which is true for any n greater than 2. write a function called check_fermat, which accepts four parameters-a b...
problem description has been using vue-cli before, but now I want to do it manually and set up my own environment to run, which can be regarded as a learning process. However, I TM did not expect to start GG ah! this script is not what I want at al...
the previous command is as follows: mongod --logpath C: mydatabase logs.txt --logappend --dbpath C: mydatabase --serviceName MongoDB --install however, there is no prompt on the command line after entering the carriage enter, and the service has ...
log out logOut(){ DeviceEventEmitter.emit( Logout ) let resetAction = NavigationActions.reset({ index: 0, actions: [ NavigationActions.navigate({routeName: LoginStack }) ] ...
When vue + ueditor is used, codeMirror and ZeroClipboard report errors unexpected token < and ueditor.all.min.js?6fc0:11 Uncaught ReferenceError: ZeroClipboard is not defined . Why? ...