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mac 上终端打开很慢，顶部会先bash->git->ruby

为什么每次打开终端，顶部会先bash->git->ruby 什么的，最后才出现命令行？...

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

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css怎么解决hover鼠标移除后的效果

想要实现背景图片鼠标移入左右翻变换背景图的动效，但是移出的时候想要去除掉翻转，直接把背景图片换回来，捣鼓了许多都不知道这么弄，就大神临摹求解 <!DOCTYPE html> < ... ></div> <div class="flipBtn_face flipBtn_front"></div> </li> </ul> </body> </html>...

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

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regex - Merge two dataframes on string columns with values containing wilcards as for like in SQL - Python

I want to merge 2 dataframes on string columns with values containing wildcards as we can do with like in SQL. Example : import ... ) but can I use it in this case with a merge?...

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

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mongodb - connect-mongo autoRemoveInterval does not work correctly

My code: (with express.js and express-session) app.use(session({ store: new MongoStore({ mongooseConnection: db, autoRemove: ... for my English. I would be grateful for your help....

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

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用 supervisor 管理后台进程为什么 stop 掉了之前开启的应用，但是发现其实还是在运行，因为通过浏览器还是能访问?

用 supervisor 管理后台进程(就是一个spider) 为什么 stop 掉了之前开启的应用，但是发现其实还是在运行，因为通过浏览器还是能访问...

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

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gulp 的 browser-sync 一直无法动态加载老是刷新页面，求解决。

我弄的每次修改 js 或 html 文件，浏览器都会刷新页面而不会重新加载这一点都不像网上说的以下是我的代码: browserSync = require('browser-sync'). ... .watch(jsonSrc, ['compressJSON']); }); gulp.task('default', ['browserSync']);...

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

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how to sum column in where clause and group by id in laravel

I want to filter between low stock items and high stock item but I get an error this is my code $this->authorize(' ... where (SUM(stocks.quantity <= 3) group by medicines.id)...

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

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tomcat 7.0很奇怪日志都没有输出直接报

Server Tomcat v7.0 Server at localhost failed to start....

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

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c# - Dockerize BlazorWasm .NET hosted project into single container?

Goal The goal is to deploy a BlazorWasm App with an integrated API (ASP.NET Core hosted) using a single ... finding anything helpful. Any guidance will be greatly appreciated!...

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

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r - Adding legend to multiline ggplot

I'm trying to add a legend to my plot at ggplot. The dataset can be seen in percent KNN logistic LDA QDA 1 0.10 0.7393658 0 ... Method", labels = c("KNN", "Logistic","LDA","QDA")))...

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

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现在公司流行用的前端打包工具是哪个啊？

我百度了，常用的有grunt，gulp,webpack,但是我想问问已经工作的伙伴们，我现在想学习一个，到低哪个工具是目前比较常用或者流行的？因为时间有点紧，不能全部学完...

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

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.htaccess - External access to a vache with apache redirects to localhost

I added apache to a vps and installed wordpress on it, when I access it locally (via the vps) I have no problems, when I try ... this? I wish you all a good end of the year! ???...

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

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《python核心编程》中高级闭包和装饰器理解？

1.《python核心编程》的这段程序怎么理解？对于这个函数，书上说两个wraaped是闭包，但是不知道谁是自由变量 2.代码： from time import time def logged(when) ... @logged("post") def hello(name): print "Hello, ", name hello('World!')...

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

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css 三角形缺口，

如图：这个三角形缺口是透明的，请问咋个实现大家请注意问题的关键，三角形能看见后面的背景...

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

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virtualBox安装centos7的安装增加功能，报VERR_PDM_MEDIA_LOCKED错误怎么解决

报错信息如图所示： Could not mount the media/drive 'D:Program FilesOracleVirtualBoxVBoxGuestAdditions.iso' (VERR_PDM_MEDIA_LOCKED). 查了很多资料，都没能解决，求指教，谢谢！纠结了半天，还是没能解决，在线等~~...

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

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reactjs - Cannot add component in React

I am trying to add footer.js in my react App.js This is my app.js. import React, { Component } from "react"; import ... . But the console shows an error: SO what am I doing wrong?...

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

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219 views

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2048 Java Game: To move function

I recreated the 2048 game. I just have one problem. When the user enters the letter corresponding to the move it should ... (board,dimension); answer = in.next(); break; }...

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

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How to skip a template copy in Ansible if the file has a pattern?

Trying to only copy an Nginx config file if the destination file does not have a string in it. I thought this would work: ... ? Maybe there's a better way to get the same result?...

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

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ASP.NET MVC Filter AuthorizeAttribute 怎么设置例外?

[AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)] public class LoginFilter : AuthorizeAttribute { } 这样写的话所有的页面包括 ... ，应该在哪里设置？在web.config里里写了也没有起作用 ...

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

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js正则如何提取图片标签的alt值

var aa="你好<img src='aaa.gif' alt='图1'>天气不错<img src='bbb.gif' alt='图2'>哈哈" 如上代码，最终想用正则得到的是如下文字你好图1天气不错图2哈哈应该怎么写呢？我能想到的是用replace,但是如何匹配img并提取alt信息，我实在不会。求帮助~...

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

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express+vue多页面开发遇到的问题

苦脑屎了，不知道这是什么回事！用express+webpack+vue搭建好一个wanghuatong页面一切都ok，但是在加一个wanghuatong2页面的时候它下面的router-view里的vue代码就什么 ... -view下的vue组件内容为空求解！！求解！！求解 localhost:8081 localhost:8081/m/...

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

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Firebase Cloud Messaging Notification Delivery Delays

Setup Xcode version: Version 12.2 (12B45b) Firebase SDK version: 6.10.4 Installation method: CocoaPods Firebase Component: ... , results: [ { message_id: '1609436035476335' } ] }...

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

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javascript - localStorage.setItem does not want to store JWT

I have an async function for a login call in a controller file, it looks something like this: login: async(req, ... s the proper way of putting a generated token into localStorage?...

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

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python - How do I format a string to create an iterable list?

I have a string containing multiple institutions of the following form: 'Harvard University Yale University ... ' Where ... a list like [Harvard University, Yale University,..]?...

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

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vue如何绑定动态属性为根级响应？

用户需要填写多个被保险人的信息，但是被保险人数n是从上一页传过来的由于 Vue 不允许动态添加根级响应式属性，所以你必须在初始化实例前声明根级响应式属性但被保人list长度是动态的，那 ... 时，v-model="insurant[n].insurantName"会报错这种情况该如何在template里绑定被保人insurant所有数据呢？求指教多谢...

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

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非集群的多台tomcat如何实现session共享？

不用redis之类的缓存有其他办法可以实现吗？...

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

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根据网址跳转不同的页面如何写

PHP中，根据网址跳转不同的页面如何写例如当用户访问 https://www/?a=* 自动跳转为 https://www/?b=* PHP代码应该如何写？ ps：等号后面是任意数字，根据不同的数字，跳转到不同的页面...

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

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问一下table有没有右键功能

问一下table有没有右键功能...

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

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