#Unde

Surrounded Regions

/***https://oj.leetcode.com/problems/surrounded-regions/*从四个边界的'O'出发,它们所能到达的'O'就是没有被包围的'O'。*所以,该题能够用BFS遍历或者DFS遍历。*/classSolution{public:voidsolve(vector<vect...
代码星球 ·2021-02-13

Error in render: "TypeError: Cannot read property 'url_img' of undefined"

  如果我们vue组件中template里面添加了下标(靠数组索引得到的值),就会报索引为undefined  解决方法:      在我们使用下标时,要在父组件上做条件判断,如果这个下标存在,然后就显示里面的内容,这样就不会报undefined了,...

(译)理解 LSTM 网络 (Understanding LSTM Networks by colah)

@翻译:huangyongye原文链接: UnderstandingLSTMNetworks前言:其实之前就已经用过LSTM了,是在深度学习框架keras上直接用的,但是到现在对LSTM详细的网络结构还是不了解,心里牵挂着难受呀!今天看了tensorflow文档上面推荐的这篇博文,看完这后,焕然大悟,对LST...

Call to undefined function thinkfinfo_open() 报错 解决方法

经过各方面排查,是fileinfo扩展没有安装安装即可...

ModuleNotFoundError: No module named '_sqlite3'

ModuleNotFoundError:Nomodulenamed'_sqlite3' 解决:1,首先安装sqlite-develyuminstallsqlite-devel  2,重新编译安装Python./configuremakemakeinstall ...

js数组完美去重,区分undefined,NaN,null,字符串等

functionarray_unique(arr){letlen=arr.length;if(!len){return[];}lettmp=[];for(leti=0;i<len;i++){if(tmp.findIndex((v)=>{returnJSON.stringify(v)===JSON.strin...

解决python3.7 ModuleNotFoundError: No module named bz2

解决:  ModuleNotFoundError:Nomodulenamed bz2  ModuleNotFoundError:Nomodulenamed'_lzma'1、在操作系统中安装zlib和bz2相关库yuminstallzlibzlib-develyum-yinstallbzip2bzip2-dev...

maven NoClassDefFoundError: org/mortbay/util/Attributes

在运行mvnjetty:run报错:NoClassDefFoundError:org/mortbay/util/Attributes解决方法:deleted/home/jenkins/.m2/repository/org/mortbay/jetty/onallthebuildhostshttps://issues.ap...

Linux下数据恢复软件extundelete

extundelete软件专门解决意外删除事件的,有时候不小心rm-rf*就可能毁掉有用的数据.因此就出现了这个恢复工具,但这个工具也不是万能的,删除数据后一定要停止所以的写操作.以免Inodes空间被重新分配,那样的话就永远恢复不会来拉,只能节哀了...1.安装extundeleteyuminstallgccgcc-...

TypeError: Cannot read property ‘make‘ of undefined

/这搞个html-webpack-plugin插件进来运行就一大篇报错尴尬看了一圈又是版本兼容的问题,做下修改。。。。OK运行成功...

props传值遇Cannot read property getAttribute of undefined异常

/今有一个echarts图标的子组件使用watch监听接受父组件传入的data,而在父组件页面再次根据日期筛选数据,重新传入子组件进行图表重绘时老实会提示报错vue.runtime.esm.js?6e6d:619[Vuewarn]:Errorincallbackforwatcher"chartData":"TypeEr...

get all sites under IIS

https://stackoverflow.com/questions/2555668/how-to-programmatically-get-sites-list-and-virtual-dirs-in-iis-7Checkoutthispost-seemstobeabrand-spankingnewmanageme...
代码星球 ·2021-02-08

Understanding and Creating OWIN Middlewares

Inmypreviousarticle,WhatisOWIN?ABeginnersGuidewelearnedthebasicsofOWINandthebenefitsitbringstobuildingwebapplicationinAsp.Netframeworks.Wehavealsolearnttobuilda...

Understanding identities in IIS

https://support.microsoft.com/en-my/help/4466942/understanding-identities-in-iisThisarticleprovidesbackgroundinformationaboutidentitiesinInternetInformationServ...

Understanding the Module Pattern in JavaScript

OfallthedesignpatternsyouarelikelytoencounterinJavaScript,themodulepatternisprobablythemostpervasive遍布的,充斥各处的.Butitcanalsolookalittlestrangetodeveloperscomingfr...
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