Recent questions in Technique[技术]

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how to get the name instead of reference field in mongoengine and flask -admin

i am trying to assign a specialty for each doctor through admin panel i have created class doctor and it includes a reference field ... ][5] [![enter image description here][6]][6]...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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428 views

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vue.js - browser extension - download multiple JSZip unzipped files

I'm using JSZip in my vue browser extension. I've created a function to read zip files and I'm able to get the ... know how to convert the object passed from JSZip to the method....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

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Extracting image files from LMDB format in python

I have come across a file of type .lmdb. I need to work on it but, I am not able to understand the ... return pickle.loads(buf) _pickle.UnpicklingError: invalid load key, 'xdc'....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What should I do to private key after adding it to ssh-agent?

I created a key with ssh-keygen and added it to ssh-agent successfully. All I know about ssh-agent is that it will ... access to my machine, they can easily see my private key....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Nav bar not showing up on permalink Jekyll site

I've been toying around with a GH Pages Jekyll site. I took an HTML static site and changed the location for ... .com/Thor-DraperJr/Thor-DraperJr.github.io Thanks for the advice!...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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488 views

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php编译时如何指定动态扩展目录？

1.php编译时如何指定默认动态扩展的目录？ 2.如果编译时指定了默认扩展目录，之后又修改了php.ini中的extension_dir指定了别的目录，默认目录与指定的目录中的扩展加载先后顺序是什么？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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关于vue生命周期的问题，如何获得已渲染完的元素

需求：通过axios获取一组数据，以一组<li>的形式显示出来，需要获取每个<li>实际的大小然后进一步计算调整这些<li>的style。在beforeMount里我使用axios获取数据，但是在mounted里使用$nextTick依然获取不到已渲染完成的$el，请问到底应该如何获取渲染完的这一组<li>？谢谢。...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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微信小程序中如何在canvas画布上绘制圆形图片？

原生js中的canvas有多种方法可以绘制圆形图片，比如用clip方法（https://segmentfault.com/q/10...）但是小程序中封装的canvas方法比较少，没有clip方法，不知道有没有其他办法能够做到绘制圆形图片？有知道的大大希望可以告知一下，谢谢啦...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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449 views

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使用docker之后，启用了显卡优化。然后多了4个模拟的显示器，如何删除？

出现了4个模拟显示器，现在感觉电脑卡卡的。我已经卸载了docker了，不过这里还是无法还原回来...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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261 views

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js截取url的问题，不要#后面的

目前我知道的js获取携带参数的url的方式是 window.location.search 但是假如说有个链接是 www.xxxxxx.com?aaa=bbb&ccc=ddd#ok 取得的就是?aaa=bbb&ccc=ddd#ok 我不想要这个#后面的这个hash值，能去掉不，还是必须要用正则才能去掉？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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292 views

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JS，CSS资源加载器，如何管理

因为历史遗留问题，公司一直没用资源加载器。都是想用啥用啥。页面各种引用。之前用 SeaJS，但感觉坑有点多。现在官网都没了。o(╯□╰)o。请问现在主流的解决方案是哪家强？传统页面开发，需要对CSS也顺带管理。...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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648 views

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在谷歌浏览器下，使用mint-ui,会报错！火狐跟360浏览器不会

报错代码 Uncaught TypeError: Object.assign is not a function 执行代码如下： npm install -g vue-cli vue init webpack projectname npm ... mint-ui' import 'mint-ui/lib/style.css' Vue.use(MintUI)...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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731 views

1 answer

php - How to save drag moves into database

happy new year!!! <!DOCTYPE html> <html> <head> <style> html, body { margin: 0; } table { border-collapse: ... in will remember "saved" the moves I did. Thanks in advance....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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477 views

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为什么浏览器可以显示HTML文档中未被定义的标签？

今天在测试HTML5中<main>标签的兼容性时突发奇想，把"main"改成了"abcd"，然后以为浏览器会忽略<abcd>的样式，但是结果并非如此，它表现得和普通标签一摸一样。我就觉得很奇怪啊，那不就是XML了吗？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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517 views

1 answer

ruby on rails - Saving an object without its association

I am trying to create a cart that is able to be utilised even if the user does not login. I am currently using ... cart] = @cart.id end end end def login? !!current_customer end...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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210 views

1 answer

Not looking the console correctly in C Managed Build in eclipse

#include #include int main(void) { int num; printf("Enter a Number");`scanf` scanf("%d",&num); if(num...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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409 views

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onbeforeunload 提示框关闭和刷新为什么sessionStorage能存下来，alert弹不上去？

http://www.runoob.com/jsref/e... 勾上之后再次刷新一下是根本不会触发函数体的我测试过这是为什么呢？不勾就可以啊 window.addEventListener("beforeunload" ... ？这是什么机制啊？ }); http://jsbin.com/zisazacani/e... JS Bin在线示例...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

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vue $scopedSlots要怎么使用

<div id="app"> <a-a> <template v-slot:default="a"> {{a.text}} </template> </a-a> </div> <script src="vue.js"></script> <script> Vue. ... " }); </script> 浏览器不会显示任何错误，也不是显示你好，哪里出现问题了...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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313 views

1 answer

TypeScript 的类型问题

请教下，这里如何让 AccountResult2 继承 Account 的属性，同时 AccountResult2 还可以是 undefined？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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springcloud 使用zuul做API统一访问，怎么防止客户端直接调用其他微服务的RUL

springcloud 使用zuul做API统一访问，我想禁止客户端绕过zuul网关，直接通过指定微服务的URL，去访问。...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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310 views

1 answer

在redux action creator里如何转换屏幕 React Navigation 5

userActions.js import {LOGIN_WITH_FACEBOOK} from './types'; export const loginWithFacebook = () => (dispatch) ... combineReducers({ user: userReducer }) export default rootReducer...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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element 表单 v-for动态渲染问题

在element用v-for动态增加表单输入项的时候，动态增加的内容v-for（两层）没有渲染，点击增加其他v-for(一层)的内容是重新渲染了，包括前面的两层v-for 请教下，哪里 ... el-input v-model="son_item.ext.ad_domain_web"></el-input> </el-form-item> </el-col>...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

1 answer

vue 移动端项目中，使用了better-scroll 和高德地图，当滑动地图时，整个页面也会滚动，怎么解决

vue 移动端项目中，使用了better-scroll 和高德地图，当滑动地图时，整个页面也会滚动，怎么解决?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

1 answer

reactjs - NEXT.js API route wont accept POST requests

I have a Next.js API route set up at "pages/api/contact". When I process a GET request or navigate to localhost:3000/api/contact ... .json({ message: "This is not a post", }); } }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

1 answer

Angular Material Table spitted headers add the sticky header functions

I am having the spitted header angular material table and I was looking for help to add the sticky header. I ... my stackblitz. https://stackblitz.com/edit/angular-bklajw-5foa62...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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527 views

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type check failed for prop "model". Expected Object, got Array

vue.runtime.esm.js?0261:619 [Vue warn]: Invalid prop: found in ---> <ElForm> at packages/form/src/form.vue <Previewexam> ... this.getData(); } } </script> <style scoped> </style>...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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614 views

1 answer

vue.js - vuetify v-file-input not select file the first time

I am using v-file-input to select file for uploading. The issue I am facing is that the file is not selected the first time. The ... { text }} </v-chip> </template> </v-file-input>...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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408 views

1 answer

sqlite 文件损坏

近期遇到一个问题，sqlite 文件总是异常损坏，database disk image is malformed。因为这个文件是工程文件，所以各个进程对它的操作都是读，没有写。我也搜了下网上的解读，发现都不太可能，想了一天，没有什么思路。发到这里，就是让各位朋友们看看是否也遇到过类似的问题，可以给个验证的思路就好，先行谢过。...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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