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why i can't see default image here below are my model and profile.html file: Model: from django.db import models from ... /div> {% endblock content %} Thank you in advance......

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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848 views

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el-upload from表单中多张图片怎么进行必填验证

el-upload from表单中多张图片怎么进行必填验证，增加验证后正常生效我增加校验后，我上传了图片依然判断为空，无法提交表单 <div class="cq_center"> <el-form-item ... } ], adAvatar: [ { required: true, message: ' ', trigger: 'blur' } ],...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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539 views

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swift - Cannot find type 'NSViewRepresentable' in scope

I want to create a blurred view in SwiftUI using NSViewRepresentable but XCode gives me an error message that says " ... StackOverflow and haven't found anyone with the same issue....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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396 views

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Element UI表格在触发select-all的时候怎么获取取消选中的行

最近在项目中使用Element UI遇到一个问题，就是需要在点击Element UI的全部取消的checkbox的时候需要获取到取消选中的行，但是这个API的参数只提供了selection，即选中的行，但是取消的时候selection就变为空了，有没有方法获取到取消选中的所有行呢？是我用的姿势不对么？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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304 views

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Golang中如何int 16进制转byte再转int

问题：已知一段16进制的数0x5AF3ACA48850，需要转成8位的byte字节存在几个问题： int转byte之后，得到的是[172 164 136 80] 而如何才可以得到这种输出？[ ... =%s n2Byte=%v n2Int=%v n2Int16=%vn", n2, n2Str16, n2Byte, n2Int, n2Int16) }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请问nginx，简单的反向代理怎么配置

我用本机地址ipconfig的ipv4是172.18.110.10访问http://test.oa.com/api/Detail跨域了，请问nginx里怎么配置可以实现跨域请求，非常感谢各位老哥 //nginx的conf文件 server { }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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不同的项目，前端在请求后端接口的时候想携带同一个cookie ，如何操作呢？

现在有两个项目，两个项目都是请求的一个后端服务。B项目是Vue写的，现在把这个Vue项目打包之后，直接放在A项目之下，并且它的AJAX请求，能直接携带A项目的cookie。请问应该怎么弄呢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - How do I import an existing NodeJS project to NestJS

I have a large and complex NodeJS project, with ejs files and assets scrambled inside - it's a bit of a mess. It was ... ). Does that make sense? Any ideas how it can be done?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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这种飘动的动效叫什么动效，小程序中可以用什么实现

（图片来源百度搜索）...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I define a Rust struct with a WebAssembly constructor?

I'm trying to export a struct from Rust to WebAssembly, but I'm getting the following error: Uncaught (in promise) ... ); What would be the correct way to export a struct?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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885 views

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datatable - How do you present a table (and graph) illustrating frequencies by permutation group sizes in R?

I'm trying to work out how to illustrate in a table and graph, the frequencies (numbers of groups) by permutation group ... ), how many groups are made up three the same, etc?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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283 views

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js 音频编码

js如何对获取到的音频进行opus编码...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

1 answer

React Post请求跨域问题

前后端分离，前端ReactJS，后端PHP(Laravel), 本地调试的时候想调用远端接口前端配置：在pakcage.json中配置代理如下： "proxy": "https://www.shufadict. ... access control check: It does not have HTTP ok status. 求指点，困扰好几天了 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

mysql - Searching a string in a column

can anyone help me. i have a DB in mysql, and need to search for a string in a particular column. the field is var ... , and i need to search all of them. apologies for my english...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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除Generate Avatar外还有其他的哪些开源头像库

我想知道如图中的各个专栏的头像是手动导入的还是自动生成的？其次若是自动生成的，那么使用的是哪个生成库？个人感觉跟Generate Avatar不太一样，图中的头像线条感更强！！！...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Django filter datetime based on month and day only in a range

I am trying to filter model objects in between a certain range. If I consider the year then I am able to do it ... am not getting the correct values here. How can I rectify it?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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805 views

1 answer

swiper 整屏滚动问题

pc上首页是整屏滚动，代码如下 var pageSwiper = new Swiper('#pageSwipe', { pagination: { el: '.outer-pagination', clickable: true }, direction: 'vertical', ... }) 在做响应式的时候，手机端不太适合做整屏滚动，该怎么设置？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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131 views

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html - How can I convert long to int in JavaScript?

This HTML file calculate the difference in days between the current date and a selected date as long as it is later than today ... ="Data non inserita"; } } </script> </html>...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

1 answer

angular 8安装ng zorro不成功应该怎么解决？

不知从何入手解决这个错误，请大神指教（PS：管理员权限启动cmd试过了，也不行）报错信息如下： angular版本信息如下：...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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一道算法题跪求解答

假设有一批数字 0~100000，有80个set，每个set都会从0～10000挑选出m_i个数字，m_0,m_1,...m_79不一定相同，现在需要从0~100000找1000个数，使得每个set都至少有100个数在这1000个数中，仅找到一种可行解就行了...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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237 views

1 answer

java - Storing Password in RAM of JVM: How problematic?

We have an application written in Java for Rasperry Pi. The password hash for the login is stored in a file ... is whether this is an acceptable approach with regard to security....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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311 views

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提供一个vue的模态框路由思路？

问题很简单，主要是想请教下思路网站由以下几个页面组成： |-首页 index.vue 对应路由：/ |-文章频道 article.vue 对应路由：/article ??????????|--文章 ... = true; router.push({ name: `article-id`, params: to.params }; next(); });...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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355 views

1 answer

meson: How to execute a run_command prior to building a target?

I have a meson custom_target that builds a docker. Before it runs, I would like to remove some files. However, I ... file', dev_docker_file , meson.source_root()] , console : true)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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254 views

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javascript - Request for an API with Axios - Unauthorized

I'm trying to make the request for an API, using Axios: const axios = require ("axios") const httpsAgent = ... } Is there any more configuration to do? Insomnia/Postman works...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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219 views

1 answer

关于一个大的vue项目中如何集成其他vue小项目？

请问需要用到哪些东西？前端小白求指教...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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186 views

1 answer

javascript - No result from MongoDB / MongoJS query

I'm trying to query my DB for users, but nothing happens when I try. Here is my code to query the DB: console.log(" ... and is there any way I can see the responses from my query?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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510 views

1 answer

regression - Deep learning: howto handle variation in input size

I would like to do a regression Task (find x,y position of an Object in some images with size of approx 150x 70 ... using CNN's? How do I handle this variation of image sizes?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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136 views

1 answer

element如何在表格点击行时显示popover？

能在表格的row-click事件里显示popover吗？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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