Chuanshuoge

Saturday 22 April 2017

Posted by chuanshuoge at 07:29

python threading

threading is better for IO-bound tasks. an IO-bound job is dominated by a lot of waiting on input/output to complete. multiprocessing is id...
sql concept review

Advantages of data base over file Built in multilevel integrity Logical and physical data independence from database applications G...
matplotlib area fill

import numpy as np from scipy import stats import matplotlib.pyplot as plt x = np.linspace(-5,5,100) #normal distribution, mean =0, dev...
路的呼唤
django 20 registration authentication

open webpage, not log in yet click add, update, delete album will redirect to login page new user, register account new u...
Bank express + ejs + mongodb, authentication jwt + bcrypt

project url : https://chuanshuoge1-bank.herokuapp.com/ welcome page signup page register bob (password abc) sam (password 123) ...
react hooks useInterval

setInterval with hooks is as egg on React’s face. useInterval() Is a Better API. blink every second, click toggle to stop or resum...
quantopian lecture pandas 2

import numpy as np import pandas as pd import matplotlib.pyplot as plt dict_data = { 'a' : [1, 2, 3, 4, 5], 'b'...
django 31 update user profile, password

logged in as bob, show bob's posts click update profile, change username to bobby profile updated, select bobby's pos...
sessions asp core

Using Sessions and HttpContext in ASP.NET Core and MVC Core If you’re new to ASP.NET Core or MVC Core, you’ll find that sessions don’t ...