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Recent questions
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vue开发的H5页面想嵌入到app,必须部署到服务器app开发才能使用吗
现在没有服务器该怎么测试...
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Jan 27, 2021
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reactjs - How to pass the values from different components using React js
I have Three components like Main.js is the parent components Main.js has two different class components ... components are different not having parent and child relationships....
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java - How to bundle/integrate React app in Gradle/Jersey (without any use of spring boot)?
I have a project with a back-end built on Gradle and a front-end built with React. However, I can't find any ... for deployment. If you have some tips or advice, please help....
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el-calendar如何切换渲染指定月份?
为了实现类似这样,点击上边日期选择后切换到对应的月份,求教...
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node.js - How can I serve a static file using Koa?
I want to implement universal links in my project and I need to serve a json via Koa, which is a static file named apple- ... way. What can I do? Thank you very much in advance....
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java 占位符的问题
package main; import com.company.MingLuSpider; import java.io.IOException; public class Main { public static void main(String[] args ... :3053) at java.net.URI.<init>(URI.java:588)...
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Jan 27, 2021
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请问怎样在前端页面引入地图呢?可以放大缩小的那种
网址:http://www.clevermama.com.cn/blank221.html 如图:...
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DolphinDB如何查询某个symbol字段的所有取值
DolphinDB中想查询某个symbol字段的所有取值,应该怎么操作?...
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Jan 27, 2021
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javascript - Loop json data and display in table inside modal
I am having trouble looping through a JSON object and displaying certain values in a table. On that table, there is a view button ... ="modal">Close</button> </div> </div> </div>...
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Jan 27, 2021
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javascript
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app登录接口和session咨询
后台和APP的登录接口一般是分开还是同一个呢?现在还使用session吗?使用session的话app端接口如何处理?如果用JWT的话又无法注销登录,也不好访问的时候自动延续过期时间啊。谢谢各位不吝赐教...
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Jan 27, 2021
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c++ - Auto-Vectorization of Matrix Addition
I am trying simple matrix addition code to get auto vectorized. float A[100]; float A[100]; float C[100]; int n = ... I do to make it vectorized and what does this remarks mean ?...
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Jan 27, 2021
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jq怎么实现滚动到某标签给它一个class,离开去除这个class
<ul> <li></li> <li></li> <li></li> </ul>...
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Jan 27, 2021
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pyqt中videowidget设置全屏后,和父窗口脱离
我设计了个播放器界面,使用用videowidget显示视频画面,videowidget部件放置在QMainWindow窗体上 然后设置videowidget为全屏时,无意中按下alt+tab切换为其他程序界面时,发现QMainWidow ... ,如何让QMainWindow一起跟随QVideoWidget全屏 当我按下alt+tab时,只显示一个程序图标?...
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Jan 27, 2021
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请教.NET POST为空
我是.NET core初学者,现在遇到个奇怪的问题,模拟的服务器接收到的POST永远为NULL,但是debug显示,接收操作是没问题的,因为进入了我设置的断点 private static Dictionary<string, AddRequest> DB = ... } ] } ` ### 请高手帮我看一下问题,自己找了2天,也没看出来具体原因,谢谢...
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请教.NET
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Powershell Install-module 卡住不动,下载很慢,有什么方法让他下载快一点吗
如题...
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Jan 27, 2021
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Powershell
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bash - Read file and run command in zsh
So I generally create job files with a list of commands in it. Then I execute it like so cat jobFile | while read a; do $a; ... 'a' 'b' 'c') or echo $a Thank you for your answers!...
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Jan 27, 2021
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bash
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antd inputnumber
antd inputnumber 能不能用formatter 限制输入数字如果是一位数前面加个0呢...
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Jan 27, 2021
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antd
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1.2k
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vue组件内方法抽取问题
有几个组件里都使用了一些方法,都写在methods里了。 这些方法里用了很多data里的变量,有很多this.xxx this.yyy this.zzz等等,大概有10个变量。 我想把这些方法提出来放到一个js里,然后import到vue组件里。 但这些方法内部的变量怎么提取出来呢? 都通过传参传进去吗?...
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Jan 27, 2021
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apache kafka - ERROR Failed to handle: Command{statement : This version of ksqlDB does not support executing statements submitted prior to ksqlDB 0.8.0
I had tried creating stream by installing ksql server and client using confluent zip / tar file and it had worked . ... luck about this on internet. Can anybody help with this?...
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Jan 27, 2021
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apache
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求一个PHP商品装箱最小化的算法,贪婪算法?
现有php订单商品列表数组如下: $goods = [ 20200702024 => [ "name" => "LP-雨伞", // 商品名称 "bar_code" => "20200702024",// 条形码 "quantity" => "3", // 数 ... 装3个就满了,但是它有8个,也要拆开放下一个箱子 5 使用PHP语言,这个算法应该如何写?...
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Jan 25, 2021
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1.5k
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有没有方法可以监听到电脑弹出下载文件的窗口后,点击下载,可以监听到文件有没有下载成功?
问题如标题---------...
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Jan 25, 2021
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votes
1.4k
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节流函数为什么,点击无效,监听窗口大小却有效?
网上抄来的节流函数 两种触发方式一种是window.onresize = throttle(resizehandler, 100, 500); 第二种是<div class="cm-btn sub cp" ... ().getTime()); } window.onresize = throttle(resizehandler, 100, 500);...
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Jan 25, 2021
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1.3k
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flutter 如何调用子widget的方法。
写了一个下拉菜单[dropdown],内部有两个方法: 现在需要在引用[dropdown]的widget中手动关闭菜单。请问下有什么方法可以从父widget操作子widget。...
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Jan 25, 2021
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1.6k
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vue项目写两套代码做移动端与pc端
vue项目中匹配不同的设备跳转不同的页面(pc端跳转pc端的文件,移动端跳转移动端对应的文件),如何在适配移动端的情况下,不影响pc端的布局?...
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Jan 24, 2021
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1.4k
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vue3项目中数组变化的更新问题
<div :class='["tab-item", menu.isShow === 1 ? "tab-item-on" : ""]' v-for='(menu, idx) in menuList' :key='idx'> <div class="tab- ... 用ref创建响应式数组,则无法使用数组的方法如map filter等 请问各位大神有何高见???...
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Jan 24, 2021
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After opening port as inbound rule in windows firewall, i can't see the connection in netstat
In firewall, I added port 443 as inbound rule as TCP, for all domains, with the green checkmark appearing after. I run ' ... I just want port 443 to be listened to on my local....
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Jan 24, 2021
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java - Mapstruct: Ignore some elements of a collection based on the value of one of their fields
I have these beans: public class Company { private String name; private List<Address> addresses; ...some other fields... } ... is true. Is there a way for me to achieve that?...
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Jan 24, 2021
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Readin a line from console c++
I am new to c++ and I am a bit lost here! I am trying to read the following line * - 6 + x -6 - - 9 6 * 0 c ... at the next iteration I am getting 6, I need to get "-6"! any help!...
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