Chuanshuoge

Saturday, 20 February 2021

matplotlib mouse click event draw line

left click to set 1 point of a line, the second point follows the mouse position, line is floating left click again to complete t...
opencv 45 detect and improve low contrast image

original contrast level 1 contrast level 2 original, contrast level 1 - 5 final enhanced image #low_contrast.py from skimage.exposure import...
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...
Linq – Action vs Func vs Predicate in C#

The purpose of writing this article is simple; to provide a simple and fresh demonstration of Action vs Func vs Predicate keyword in C#. ...
Inside SpaceX 2018
react chart2 arc sersies

project link: https://chuanshuoge1-react-chart3.herokuapp.com/ legend, chart, table increase energy slider, other sectors decre...
贸易战爆发中国楼市将面临三种选择

中美贸易战的扩大化，似乎已很难避免! 　　美国方面公布了针对中国1300多种商品、超过500亿美元货值的“惩罚清单”(加征25%的关税)。4月4日，中国也公布了针对美国的，同样规模的“惩罚清单”。　　中国开列的“惩罚清单”是：对原产于美国的大豆、汽车、飞机等进口商品加征...
django 5

from django.db import models class Album(models.Model): artist = models.CharField(max_length=50) album_title = models.CharField(...