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452 views

1 answer

how to make relationship in django model

models.py So,here i want to make Invoicemgmt model in which i can have multiple entries for Invoice table having ... table for one specific invoice table id(one specific data)"...

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

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381 views

1 answer

使用scrapy时xpath解析的两个语法问题

xpath解析语句是这样的： item['title'] = response.xpath('//span[@class="title"]/text()').extract_first() item['content'] = response.xpath('/ ... 面的<div class="content"></div>，里面的p标签保留，需要怎么写？...

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

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203 views

1 answer

Promise的意义是什么？

在做微信小程序的时候遇到了请求异步的问题，导致代码冗长而且复用性很低后来研究了promise但是发现这个东西并不能解决以上问题之前的小程序代码类似于这样 wx.request{{ url:' ... .request({ url:'xxx', data:{ data:somthing }, }).then(function(data){ }); });...

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

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296 views

1 answer

SpringMVC中的@ModelAttribute注解是可有可无的吗？

在学习SpringMVC中的使用Controller接受表单的值，按照《Spring实战》中的代码，Controller如下： @RequestMapping(value = "/register", method = POST) public String ... 的功能？在这个例子中是不是即使不显示写也能有一样的功能？...

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

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475 views

1 answer

spring boot - HashiCorp Vault multiple values for ldap.urls (list of urls)

I have configuration for spring ldap in application.yml as: ldap: urls: - ldaps://host01.acme.com:636 - ldaps:// ... into HashiCorp Vault a list of urls as value under ldap.urls?...

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

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290 views

1 answer

mysql - openstack aodh charm remains in waiting state “'shared-db' incomplete”

please I need your help, We are running a platform built on the openstack framework(Rocky). Recently we ... queue handler hooks/relations/mysql-shared/requires.py:20:changed...

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

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310 views

1 answer

javascript - Docker compose doesn't connect to POSTGRESQL cloud URL , only changes data locally on Postgres Image

I'm using the following Docker-compose.yaml file : version: "3" services: myApp: container_name: employeeApp build: ... URL postgres://postgres:[email protected]:5432/EMP_DB....

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

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170 views

1 answer

上传到composer packages的包无法下载。

我想学习一下如何上传包到packages上，所以就做了一个测试包，使用composer init生成composer.json配置文件，如下配置：然后在github项目的setting中设置的hook ... 可以composer search shangdev这个包，但是使用composer search shangdev/payment就无法搜到 ...

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

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239 views

1 answer

react-redux遇到的问题

let data = [ { name:"aaa", gender:1, birthday:"1999-07-23", hobby:'篮球' }, { name:"bbb", gender:1, birthday:"1999-10-02", hobby:' ... /Router> ) } } 如果我的子组件比如Home要获取state状态该怎么获取，求指教...

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

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377 views

1 answer

excel - Textbox to filter all values that matches in range

I have been using below VBA code to filter the data by typing starting words in textBox and it works great. The ... ActiveWindow.ScrollRow = 1 End If Set bul = Nothing End Sub...

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

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1.1k views

1 answer

关于react 使用 ref取实际的dom节点的问题

两个console的实际dom节点的值这个不行 let value ... <input type="text" ref={( ref ) => { value = ref.value }}/> <button ... submit"> 确定 </button> <button onClick={cancel}>取消</button> </form>...

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

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1.0k views

1 answer

tensorflow - Model Training in google colab is stuck

I was training a Model with 3.6 mn instances in the training dataset and 400k instances in the Validation dataset ... is there any chance that it will be successfully completed?...

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

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224 views

1 answer

拉勾展示公司限制问题

进入拉勾公司页面，选择行业领域做过滤，切换页码的时候会得到一个json，比如 https://www.lagou.com/gongsi/... 可以看到拉勾每页展示16个数据，总共页数不过也才几十页，但是获取到的这个json有个字段叫totalCount，数目为30000，这个字段代表的是实际的总数量吗，但是拉勾只展示了部分...

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

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263 views

1 answer

html - Submitting form with AJAX&PHP with success response text without refreshing the page

This is my first question here and hope I'm doing it correctly. I am a beginner in this "coding world" ... succes'); $(formInputEmail).removeClass('box-error'); $(formInputEmail...

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

0 votes

466 views

1 answer

gradle - Unwanted default cmd line arguments when Java program is started from IDEA

I am using IntelliJ IDEA in version 2020.3.1 on Ubuntu 20.04.1 LTS. I am writing Java code based on Java 15, ... JVM arguments and not meant for the program. Any ideas or hints?...

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

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557 views

1 answer

jquery validation验证比较数值的大小

jquery validation如何比较数值的大小？...

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

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314 views

1 answer

javascript - Pace-js not working with Axios inside Vue

I have the following axios call: //Pace.restart(); Pace.start(); axios.post(`${this.url_base}/${this.system}`, ... waiting for the stop signal from axios. What am I doing wrong?...

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

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380 views

1 answer

js的正则替换，带动态参数的怎么替换啊

我有这样一段代码 var facearr = ['哈哈','生气','笑哭','吃饭','睡觉']; $.each(facearr,function(k,v){ msg = msg.replace('['+v+']','<img class="addface" ... 大low逼我想请问各位英雄豪杰，这个正则可怎么写我前端实在是太弱了，恳请各位指教...

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

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518 views

1 answer

关于if判断问题。

if(ksarea+scrollheight>=divtop){ hist(data_2,"myChart_2"); } }//如何满足条件，只执行一次函数呢，现在只要满足条件函数就一直在执行。...

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

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494 views

1 answer

theano import error (win10 python2.7)

因为项目需要，在win10-64位电脑上配置theano. 但是一直有 import error的错误，找不到解决方法作为一个python新手，实在搞不定，请大家不吝赐教！小女子不胜感激！按照网上的教程，安装了anaconda2, 版本是4.2 ... 这个包总之试了一些方法，仍然解决不了我的问题不知该怎么解决，希望大家给些帮助，谢谢！...

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

0 votes

563 views

1 answer

vue.js - config nginx to serve vuejs app on subdomain

I want to run vuejs app on sub.domain.com, and I simply configure nginx like bellow: server { listen 80; listen 443; ssl on ... to ssl, all is good and it works as I expect on http...

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

0 votes

241 views

1 answer

Predicting remaining runtime for minimax algorithm with alpha-beta-pruning

Problem I am trying to solve a perfekt information zero-sum game (like tick-tack-toe or chess) using a negamax algorithm ... just unpredictable by design? If so how do they work?...

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

0 votes

764 views

1 answer

flutter - How to parse complex nested json

I am trying to parse a sample json format . In my sample json format contains simple array list inside this list ... has no instance getter 'quantity'. Please help me for this...

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

0 votes

361 views

1 answer

unity3d - Debugging standalone Unity build with windbg - is it possible to get c# level information from native debugging?

I have a repeating crash in build - on loading a specific scene. Tried building the scene time after time while gradually removing ... --------- Thanks in advance for any advice!...

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

0 votes

422 views

1 answer

raku - How to declare a function that accepts a typed array parameter

Say I want to declare a function whose parameter is an array of strings: sub process-string-array(Str[] stringArray) # invalid { ... } How would I do that ?...

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

0 votes

400 views

1 answer

Ant design table如何默认全选？

使用table实现了一个购物车，想实现默认全选功能，使用getCheckProps函数后功能实现了，但是不能取消选择，代码如下 const rowSelection = { onSelect: ... <CartFooter removeAll={removeAll} numAndPrice={numAndPrice} /> } }}> </Table>...

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

0 votes

226 views

1 answer

IFrame传入POST参数。

我有一个API，比如http://XXX/test, 只支持POST请求，需要传类似如下的参数才能拿到结果 { "id": "12", "userInfo": { "name": "amy", "age": "13" }, "map":[ { ... > 但是这里form表单里的参数要怎么传递呀？我要传的参数并不是简单的key-value映射，要怎么做呢？...

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

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378 views

1 answer

reactjs - How can I know if everything actually optimized?

I built a simple react app using Gatsby. All that the app does create a calender and show it to the screen. When I checked ... did I do wrong? I ran the site using npm run develop?...

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

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