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Cannot read property 'clearValidate' of undefined
Cannot read property 'clearValidate' of undefined  这个错误是因 ......
Set(集合)
Set(集合) set中的值是不能重复的 并且这个集合是无序的 向set集合中加入值使用add方法 127.0.0.1:6379> sadd myset hello(integer) 1127.0.0.1:6379> sadd myset world(integer) 1127.0.0.1:6379 ......
【Land of Lisp】一次练习:巫师文本冒险游戏
# 绪论 Common Lisp是一门多范式语言,支持多种编程模式,包括面向对象编程、函数式编程。但Common Lisp鼓励函数式编程,并且包含有许多函数式编程相关的功能。 《Land of Lisp》是一本寓教于乐的学习Lisp语法的书籍。这本书配以漫画插图来进行表达,并且将小游戏的制作作为演示 ......
2023-08-26 关于JSON.stringify会过滤调undefined值的问题 ==》在格式化之前先用type of来判断该值是否为undefined,是就为空即可
今天传参给后端的时候就发现了这么个问题,明明对象里面有这个字段a,但是打印出来死活没有, 去掉json格式化后才发现是该值a为undefined,遂百度,故得知该值会被过滤掉。 被过滤掉的原因是因为undefined值不符合JSON.stringify的规范。 ......
2023.08.24T3 - brain - solution
# brain ## Problem 给定一棵以 $1$ 为根的树,给定树上所有点权与边权。 记 $d(i, j)$ 表示 $i$ 到 $j$ 的路径长度。定义一棵树的权值为: $$ \sum\limits_{i = 1}^{n - 1}\sum\limits_{j = i + 1}^{n}a_{i ......
openresty中几种重定向的差异比较(ngx.redirect、ngx.req.set_uri、ngx.exec)
### 一. 测试用的nginx.conf: ``` user root; worker_processes 1; error_log logs/error.log; events { worker_connections 1024; } http { charset utf-8; default_ ......
安装celery后,提示WARNING/MainProcess...you should set broker_connection_retry_on_startup to True.解决办法
调用了Celery的config_from_object方法,并新建文件celery_config.py存放设置 在celery中设置broker_connection_retry_on_startup = True 效果没有提示了。 ......
[CF1158F] Density of subarrays
Let $ c $ be some positive integer. Let's call an array $ a_1, a_2, \ldots, a_n $ of positive integers $ c $ -array, if for all $ i $ condition $ 1 \l ......
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
ORA-12500 to ORA-12699 ORA-12514, TNS:listener does not currently know of service requested in connect descriptor 数据库没有启动 https://community.oracle.com ......
javax.xml.bind.JAXBException: class XXXX nor any of its super class is known to this context
[javax.xml.bind.JAXBException: class org.bouncycastle.jcajce.provider.asymmetric.x509.X509CRLObject nor any of its super class is known to this contex ......
cmake中list,set的对字符串操作
cmake中所有的对象都是string,所以我们对这些的操作就是对字符串的操作,里面提供追加和删除的方法 CMakeLists.txt cmake_minimum_required(VERSION 3.15) project(test) # 方式二 file(GLOB SRC ${CMAKE_CUR ......
git中Updates were rejected because the tip of your current branch is behind解决方案
出现错误原因是操作过程中出现失误,git上进行的修改没有同步到本地的git仓库 解决方案:git push -u origin master -f 在远程仓库中进行的相关修改会被删除,是远程仓库回到你本地仓库为修改之前的版本。然后上传你本地仓库的修改。 注意:如果是多人开发则其他人的开发结果将会被恢 ......
Warning: /root/software/sqoop/../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation.问题的解决
# 问题描述  # 问题解决 进入到sqoop/bin的文件目录下: : Working copy text base is corrupt Checksum mismatch for text base of
问题:提交一个svn文件报错,提交其他文件没有报错 解决办法:(网上看了很多方法都解决不了): 1、把文件拷贝到svn目录外放着 2、把svn目录下文件移除,然后commit svn 3、把目录外的文件拷贝进来,先Add,然后commit 就成功了 ......
Resolving Android Dependencies 时报错 "Could not create an instance of type org.gradle.initialization.DefaultSettings_Decorated." for InMobi Unity
解决方案: Edit->Preferences->External Tools,在打开的窗口中,删除底部的复选框并给出相同的路径! ......
VScode settings.json默认配置文件路径
Linux Ubuntu: > /home/${用户名}/.config/Code/User/settings.json Windows: > C:\Users\用户名\AppData\Roaming\Code\User 来源、参考: https://blog.csdn.net/cyqzy/arti ......
SAP GUI Scripting VBA Code Snippet to Detect all IDs of the UI Elements
'-Begin Option Explicit Dim gColl() As String Dim j As Integer Sub GetAll(Obj As Object) ' '- '- Recursively called sub routine to get the IDs of all ......
elasticsearch创建索引带mappings和settings
## 一、通过kabana控制台创建 我们在kabana控制台创建一个record_feature_tag的索引,对应的mapping配置如下 ```js PUT /record_feature_tag { "mappings": { "properties" : { "_class" : { "t ......
Custom ASAN_OPTIONS set without abort_on_error=1
background: when i want to run AFL . I met this issue. and either set export ASAN_OPTIONS=abort_on_error=0 nor export ASAN_OPTIONS=abort_on_error=1 do ......
MAUI 本地数据sqlite 报错 : Cannot update Settings: it has no PK
原因是没有设置主键,需要标记主键 [PrimaryKey] public class Settings { [PrimaryKey] public string Key { get; set; } public string Value { get; set; } } ......
Leetcode 349.两个数组的交集(Intersection of two arrays)
[题目链接🔗](https://leetcode.cn/problems/intersection-of-two-arrays) 给定两个数组 nums1和 nums2 ,返回 它们的交集 。输出结果中的每个元素一定是 唯一 的。我们可以 不考虑输出结果的顺序 。 示例 1: ``` 输入:num ......
unordered_set 的初始化方法
unordered_set是一个哈希表的实现,因此初始化其实就是给它分配一定的空间,并且指定哈希表中每个元素的存储方式。 unordered_set的初始化方式有以下几种: 无参构造函数 std::unordered_set<int> mySet; 默认情况下,unordered_set会分配一定的 ......
Mixture-of-Domain-Adapters: Decoupling and Injecting Domain Knowledge to Pre-trained Language Mod...
### 1. Abstract 经过预训练的语言模型(PLM)表现出在通用领域理解文本的出色能力,同时在特定领域中表现不佳。**尽管在大型领域特定语料库上继续预训练是有效的,但调整领域上的所有参数是昂贵的**。在本文中,我们研究了是否可以通过只调整几个参数来有效地调整PLM。具体来说,我们将Tran ......
本地nacos启动报错: Please set the JAVA_HOME variable in your environment, We need java(x64)! jdk8 or later is better!
编辑startup.cmd文件 将模式从cluster改为standalone 插入一行指定你的JAVA_HOME路径set JAVA_HOME="C:\dev_files\jdk17" 然后启动nacos即可~ ......
this.$set的使用方法
//对象的属性sex的值更新为"男" let obj = {name:"六四",age:18,sex:"女"} this.$set(obj,"sex","男") //第一个参数是对象,第二个参数是更新的属性名称,第三个参数是新的内容 //更新之后的obj是 {name:"六四",age:18,sex ......
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range
在使用浏览器内置API btoa() 编码base64时: 报错Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range 报错信息解释: ......
MySQL告警"[Warning] Connection attributes of length 571 were truncated"
有时候会在mysql的错误日志中看到如下报错"[Warning] Connection attributes of length 571 were truncated"。比如: 2023-08-20T13:23:15.265489Z 47753433 [Warning] Connection att ......
Set Theory: Cardinality + Infinity comparation
Infinity Counting + Comparation: https://brilliant.org/courses/infinity/introduction-87/how-to-count-to-infinity/ Cardinality VS Tagging: Review and R ......