foreignkey on_delete delete on

GPT-Introduction of Cellular penetration test on Android 10 device

# 1 What is Cellular? ## 1.1 What the structure of Cellular, illustrate both in software and hardware on SD690? Cellular is a term that refers to the ......

GPT-Introduction of Wi-Fi penetration test on Android 10 device

## 1. What is Wi-Fi? ### 1.1 How does Wi-Fi work on Android 10 device? Wi-Fi works on Android 10 device by using a hardware component called a Wi-Fi c ......

GPT-Investigation on the Implementation of Rockchip Product's Audio and Video Codec Function

## 1 Is this function of Rockchip product developed on Linux? Yes, this function of Rockchip product is developed on Linux. According to the datasheet ......

mysql索引损坏,Record in index `log_time` of table `lts`.`lts_job_log_po` was not found on update

【1】错误信息 [ERROR] [MY-012869] [InnoDB] Record in index `log_time` of table `lts`.`lts_job_log_po` was not found on update: TUPLE (info_bits=0, 2 n_cmp=2 ......
lts_job_log_po log lts 索引 log_time

Focus On 3D Terrain Programming三维地形渲染-Trent Polack-2003

前言:你有多少次访问过你最喜欢的编程论坛或邮件列表,并对大量关于地形渲染算法的帖子感到惊讶,这些帖子似乎从各个角度向你袭来?地形渲染似乎是当今业余程序员最喜欢的主题;它是一个很好的门户网站,可以了解更高要求的问题及其解决方案。然而,地形渲染决不是一个简单的问题,特定的解决方案可能会变得相当复杂。来自 ......
地形 Programming Terrain Polack Focus

【Flink系列十七】Flink On Yarn 的Classpath传递分析

从NoClassDefFoundError:org/apache/hadoop/mapred/MRVersion到 Flink On Yarn 的Classpath的传递过程分析。ClassNotFoundException: org.apache.hadoop.mapred.MRVersion ......
Flink Classpath Yarn On

Not on FX application thread; currentThread = pool-3-thread-1

业务线程更新JavaFx的ui界面报错 Not on FX application thread; currentThread = pool-3-thread-1,解决方法很简单,在业务线程里使用Platform.runLater Platform.runLater(()->{ //执行UI更新的代 ......
thread currentThread application pool Not

事件抽取论文综述-A Survey on Deep Learning Event Extraction: Approaches and Applications

A Survey on Deep Learning Event Extraction: Approaches and Applications 1)发表信息: https://arxiv.org/abs/2107.02126 Qian Li, Jianxin Li, Member, IEEE, Ji ......

SQL中join后的on和where的过滤条件的区别

1、原理 1.1连接基本概念 (1)内连接(inner join、join):必须完全满足连接运算(natural、using、on)的左右表数据行。 (2)左外连接(left outer join、left join):仅保留左表在连接运算之前的数据行,无匹配的右表列填充null。 (3)右外连接 ......
条件 where join SQL

52.同源策略(Same-Origin Policy)限制了跨域请求No 'Access-Control-Allow-Origin' header is present on the requested resource.

又遇到如下报错了,该如何处理, Access to XMLHttpRequest at 'http://localhost:3000/users' from origin 'http://localhost:5173' has been blocked by CORS policy: No 'Acc ......

SpringBoot单元测试出错:No ConfigurationProperties annotation found on 'org.springframework.cloud.client.loadbalancer.LoadBalancerProperties'

### 问题详情: ``` java.lang.IllegalStateException: No ConfigurationProperties annotation found on 'org.springframework.cloud.client.loadbalancer.LoadBalan ......

DSU on tree——从入门到入土

# DSU on tree——从入门到入土 [TOC] ## 1.dsu有什么用? ### 降低时间复杂度——nlogn dsu的作用在于将时间复杂度降低,由n方到nlogn 举个例子: 给一棵根为1的树,每次询问某个子树内颜色有多少种。树有N个节点,询问有M次。颜色范围为 [1,N]的整数。 数据 ......
tree DSU on

ASP.NET MVC WebAPI Put和Delete请求出现405(Method not allowed)错误

解决办法: 在站点根目录下的web.config设置如下(主要参考添加项): (End) **转自:https://www.bbsmax.com/A/qVdepEM85P/** ......
错误 allowed Delete Method WebAPI

Linxu解决systemctl启动服务失败,Error: No space left on device

## 查看磁盘空间实际占用情况 ![](https://img2023.cnblogs.com/blog/1188902/202305/1188902-20230526141838797-1859303536.png) ## 查看磁盘inodes占用情况 ![](https://img2023.cn ......
systemctl device Linxu Error space

[论文阅读] Diffusion Models Beat GANs on Image Synthesis

## Pre title: Diffusion Models Beat GANs on Image Synthesis accepted: NeurIPS 2021 paper: https://arxiv.org/abs/2105.05233 code: https://github.com/op ......
Diffusion Synthesis Models 论文 Image

On Git

## Start a new code base without history from the existing one If you want to create a new code base without any history from an existing Git reposito ......
Git On

Windows——on-screen menus are locked怎么解除

出现OSD LOCKED是菜单被锁的,具体的清除方法如下: 1、如果 OSD 已锁定,请持续按住 Menu 按钮(最左边第一个) 10 秒钟就可以解除锁定 OSD。 2、如果 OSD 未锁定,请持续按住 Menu 按钮 10 秒钟就可以锁定 OSD。 简介: OSD 是 On Screen Disp ......
on-screen Windows locked screen menus

[ABC294G] Distance Queries on a Tree 题解

## Description 有一个节点数为 $N$ 的树。边 $i$ 连接 $u_i$ 和 $v_i$,边的权值为 $w_i$。 $Q$ 次询问,询问一共有两种。 ```1 i w``` :改变第 $i$ 条边的权值为 $w$。 ```2 u v``` :输出 $u$ 到 $v$ 的路径距离。 数 ......
题解 Distance Queries 294G Tree

thoughts-on-My-Memories-of-Old-Beijing

读《城南旧事》 Created: 2023-05-25T18:30+08:00 Categories: ReadingNotes 最近在看《Happier》、《毛毛》,感觉不同书里一些词句和记忆中的文字相通了。 最早接触林海音的文章,可能是来自《童年·冬阳·骆驼队》: > 老师教给我,要学骆驼,沉得 ......

[学习笔记] dsu on tree

- 适用于动态维护子树信息 - 流程 类似树链剖分定义重儿子,轻重链。 先便历轻边子树,不保存信息(删)。 最后便历重儿子子树,保存重儿子信息。 再加入轻儿子子树即可得到子树信息了。 复杂度:一个点被加/删的次数为轻边数( $logn$ )。 - code 点击查看代码 ``` void solve ......
笔记 tree dsu on

on_delete=models.CASCADE级联删除

on_delete=None, # 默认models.CASCADE on_delete=models.CASCADE, # 级联删除,即关联的表删除某一项数据,此表关联的数据都会被删除 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ......
on_delete CASCADE delete models on

How to change the default Python2 to Python3 on Linux All In One

How to change the default Python2 to Python3 on Linux All In One 在 Linux 中如何把默认的 Python2 更改为 Python3 .bashrc / .zshrc alias symbolic link 符号链接 ......
Python Python2 Python3 default change

Oceans on a Shoestring: Shape Representation, Meshing and Shading(低成本的海洋:形状表示、网格划分和着色)-2013年

作者:Huw Bowles 单位:Studio Gobo Introduction(简介):Studio Gobo is a small team of talented developers based in Brighton / UK The Crew(成员):Ben Andrews, Paul ......

cryptohack wp (CRYPTO ON THE WEB篇)(持续更新)

#Token Appreciation ![](https://img2023.cnblogs.com/blog/2698491/202305/2698491-20230524014509304-1700173564.png) ``` import jwt jwt_token = "eyJ0eXAi ......
cryptohack CRYPTO THE WEB ON

记录一下如何关闭Windows Ctrl+Alt+Delete

目标,因为现在的Windows Ctrl+Alt+Delete属于系统层面,很难做到代码级屏蔽。所以需要修改配置进行屏蔽之。 1.首先关闭Windows的“安全登录”,这样不需要从Ctrl+Alt+Delete键进入登录过程。很重要!Windows7的关闭方法 和Windows10 类似 HKLM\ ......
Windows Delete Ctrl Alt

[Error 10048] error while attempting to bind on address (‘127.0.0.1‘, 8000): 通常每个套接字地址(协议/网络地址/端口)..

今天运行程序的时候碰到了这么个问题,因为之前也遇到过这种情况,那时找不到原因重启电脑这方法偶尔能解决,今天就不行了,电脑又没有看到明显的占用这个端口的程序。所以查找资料从根源出发解决。 解决方法是: 1.进入命令行(以管理员身份) 2.输入netstat -aon|findstr "8000" 查找 ......
地址 套接字 端口 attempting address

Game on Paper 题解

[题目传送门](https://www.luogu.com.cn/problem/CF203B) 一道模拟题。 如果每涂一个格子就判断整个矩阵,那时间复杂度显然会炸。 我们每涂一个格子,影响的应该只是以这个格子为中心的 $3 \times 3$ 矩阵,判断以这些点为中心的话会不会涂出 $3 \tim ......
题解 Paper Game on

abc271_f XOR on Grid Path 题解

# [XOR on Grid Path](https://vjudge.csgrandeur.cn/problem/AtCoder-abc271_f) ## 题意 有一个 $n \times n$ 的整数矩阵,第 $i$ 行 $j$ 列的数字为 $a_{i,j}$。 你站在 $(1,1)$,每次你可 ......
题解 Grid Path abc 271

How to Delete a Git Branch Both Locally and Remotely

# TL;DR version ``` https://www.freecodecamp.org/news/how-to-delete-a-git-branch-both-locally-and-remotely/ // delete branch locally git branch -d loc ......
Remotely Locally Delete Branch Both

1127 ZigZagging on a Tree

题目: Suppose that all the keys in a binary tree are distinct positive integers. A unique binary tree can be determined by a given pair of postorder and ......
ZigZagging 1127 Tree on