Hot questions

0 votes

609 views

1 answer

vue 模板编译出错问题

text-danger这个类名编译会报错。不能用带横杠的名称吗?在js中写模板。添加引号也报错，编辑器里面显示语法错误。应该怎么写呢？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

611 views

1 answer

怎样把图片直接从本地上传到cdn,不需要经过服务器处理？

是这样的：今天公司干了12年的php哥，问我怎样直接用富文本编辑器把选择的图片传到cdn上，不需要经过服务器处理。他告诉我淘宝就是这么干的，我比较菜，一时难以理解，如果有知道的请给我讲解一下，谢谢！！！...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

601 views

1 answer

opengl - Compute shader link failure on Intel HD 4xxx / 5xxx GPUs

The following compute shader is causing troubles on Intels HD 4xxx / 5xxx series GPUs, using an OpenGL 4.3 Core context. ... exactly is triggering the bug or how to work around it....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

523 views

1 answer

thinkphp3.23开发的网站关于并发量大的优化有哪些？

我用thinkphp3.23开发一个成绩查询系统（收费查询且依附于微信），平时访问一般是不大，但是成绩公布那一刻访问量超大，至少某个时间内至少出现5k-10k人的访问（3分钟之内），我当时做的方案是：1 将运行环境和mysql环境分开独立一个 ... 将会往下操作的是：在原来的基础上再增加redis缓存技术，除了上面那些操作，你们还有哪些更好的优化请提出来？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

402 views

1 answer

node.js 的socket.io如何获取客户端的ip来标记客户socket

想在server 端获得客户ip实现断线续连，发送私信的功能，问题是如何获取客户端的真实ip来标记socket？ var ChatterList=[]; io.sockets.on("connection", function(socket){ ... "); }; ) 主要问题是： newChatter.IP=?; //如何获得客户端socket的ip？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

542 views

1 answer

做授权管理时，一个未知深度的数组要遍历，（树状图形式），请问怎么写适应的代码？

怎么实现无限极树状图的遍历？PHP遍历的。...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

293 views

1 answer

{}、+{}、[]、+[]在javascript中的含义

function test(){ return (+{}+[])[1]; //返回a } 有如上一段js代码，想知道的是为什么返回值是"a"？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

498 views

1 answer

winforms - Making setup file with sql db file to work on another computer

I create a windows application connect to sql server 2016 database. I need to make a setup file with this database file ... . these computers don't have sql server installed on it....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

370 views

1 answer

ios - How can I speed up displaying bitmap graphics with Swift and an image buffer?

I've been working on an open source 2d bitmap renderer for iOS to study different computer graphics and pixel ... recommend any texts/papers to help correct my misunderstandings?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

301 views

1 answer

c++ - Is there a way to force implicit conversion in function template argument deduction?

I have this count_ function template that counts the occurrences of a value in a vector of that its type: ... meta-programming" if so could you elaborate an example please?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

425 views

1 answer

ansible script module: what is `cmd` for?

I'm just reading the script module documentation, and I don't understand what the cmd property is good for. The ... by a list of arguments. Can someone explain the difference?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

236 views

1 answer

java - Label data based on prior records in spark

I am working on incorporating Spark and MySQL for data processing in Java for a small exercise to determine repetition in criminal ... B. COM SERVE 2020-10-01 Stella B. COM SERVE...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

437 views

1 answer

h5页面如何安卓app交互

同事说用jockey.js可以，但没有查到使用说明，请问怎样可以实现h5与app交互，或者有使用jockey.js的朋友，介绍一下如何使用，谢谢...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

242 views

1 answer

Spring service中怎么使用当前的service对象，Autowired不成功

比如AuthServiceImpl下有getUser()和getPage()两个方法，在getPage中我要调用getUser()方法，使用 @Autowired(required = false) private AuthService authService; 自动注入 ... 对象也不可以像这种service中使用当前对象应该怎么注入？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

447 views

1 answer

nodejs用户注册的信息在数据库里面显示不出来

学node没多久，准备用node做个注册的功能，但是注册页面的信息提交不到数据库，数据库用的mongodb，注册页面 <div class="col-sm-8 col-sm-offset-1 main pull-left"> <form class="form- ... 成功的跳到了登录页面，但是这个时候数据库确实这样的尝试了四次全是这样，这是怎么回事...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

317 views

1 answer

学习AJAX中出现的发现的一点问题

<html> <head> <script type="text/javascript"> var xmlhttp; function loadXMLDoc(url) { xmlhttp=null; if (window.XMLHttpRequest) {// code for IE7, ... 时间，可是还是没弄懂，求大佬解释一波，我注释中提到的问题 ...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

373 views

1 answer

xpath提取网页路径没问题，但是缺失内容？

>>> title=content.xpath('//div[contains(@id,"art_content")]/p[position()=5]/text()') >>> title ['今日猪价持续下调，局部地区猪价趋稳，吉林黑龙江内蒙古三地猪价跌至15 ... 面临13年产陈化粮及大量陈粮的去库存任务，', '承压，对养殖市场影响或有限 ']...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

594 views

1 answer

pandas - Counting the numbers in each row using python

I have a pandas data frame: a b c d ./. 0/1 ./. 0/1 0/1 1/1 0/0 1/1 0/1 1/1 ./. 1/1 I want to know, how can I get the total number ... 1 2 2 0/1 1/1 0/0 1/1 3 5 0/1 1/1 ./. 1/1 1 5...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

449 views

1 answer

idea能不能像STS那样直接通过保存快速重启Spring Boot项目

在Spring Boot项目添加了devtools的前提下，STS只需要简单的保存文件就可以触发重启，非常方便简单但是Intellij IDEA还需要Ctrl+F9构建项目才行，而且如果使用Gradle的话会调用gradle的build任务，速度更 ... 还得重新启动守护进程，无形中浪费了几十秒时间有没有啥办法能让Gradle deamon活得久一点？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

347 views

1 answer

php 如何網址中出現該頁標題？

以往撈數據都是根據該筆數據的id下去抓例如 id=123 網址就會變這樣 xxx.com/view?id=123 那請問是否可以讓標題也進入網址裡面呢？例如這一頁叫做「如何網址中出現該頁標題？」網址會是「https://segmentfault.com/如何網址中出現該頁標題？」...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

396 views

1 answer

分库分表后关于查询的问题

假设用户表规划是 2亿 = 500W(每表) 20表(每库) 2库与一个用户的总表需求是这样的当需要用户互相关注的情况， following 表与 followers 表（先假设不用分表），表结构分别为 following表 = ... 一下，谢谢，有类似的相关经验也可以只放redis 不入库这样的方案接受不了目前想要放redis 且入库...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

404 views

1 answer

java - How to create a custom videoview that resizes according to its video?

I am using a videoview inside a recyclerview. What I want to achieve is that when the videoview is in a 9:16 ... what I mentioned above? Any help would be appreciated. Regards....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

528 views

1 answer

excel - Reference Value for inserting Hyperlink

instead of inserting Sheetname as name of the new worksheet I want to include the value of the last cell in column 3 - ... Sheetname !A1", TextToDisplay:=" & Sheetname & " End Sub...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

207 views

1 answer

Upload image issue to server android php mysql

While I'm trying upload image to server (000webhost) through my android app by using php mysql I'M facing directry issue. [ ... ->execute()) return "uploaded"; return "unable"; } }...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

213 views

1 answer

mysql批量更新

mysql： A表：name1，nameid B表：name2，id A表的name1有值，和B表的name2对应。B表的id也有值。现在要拿到name1和name2相等的B表的id的值赋给A表的nameid 的sql怎么写呀？谢谢...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

109 views

1 answer

javascript - How do I search the API

I'm a beginner to Vue.js and wanted to do a project that used an API. This project was originally done by TraversyMedia using React but ... , rgba(0, 0, 0, 1) 100% ); } </style>...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

516 views

1 answer

DataTables - Requested unknown parameter on 3 of 7 Columns

I'm at my wits end with this issue and hoping someone can help. I've perused all the other answers and none of ... , Category = p.ProductCategory.Display, p.SellPrice, p.Cost });...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

357 views

1 answer

python - How to remove extra transparent pixels from an image

I have a series of transparent logos. I paste them on a canvas using PIL. Some of these logos have extra transparent ... box wraps the logo properly? Here are some of the logos:...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags