Welcome To Ask or Share your Answers For Others

Recent questions in Technique[技术]

0 votes

321 views

1 answer

json里面能使用变量吗？

` // 例如json数据 json:{ data1:'xxxx', data2:'data1 + "yyy"' } ` 想表达的意思就是能能不能在json中使用内部变量？...

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

0 votes

513 views

1 answer

python - How do I properly clear outstanding futures in `dask.distributed` when using `as_completed`?

I have a situation where I have a large job queue that I want to abort early. Later jobs depend on earlier jobs, so I ... . I used Python 3.8.3 and dask/distributed 2020.12.0...

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

0 votes

457 views

1 answer

javascript - Openlayers 6 - Performance issues when loading and rendering many images

I am attempting to take images and draw them on a map using openlayers, but am finding performance issues ( ... the capability of openlayers to efficiently manage on the frontend?...

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

0 votes

880 views

1 answer

pandas 如何新增列？

脚本： import pandas df = pandas.DataFrame([dict( id=1001, province='河南', city='郑州', amount=100, ), dict( id=1002, province='河南', city='安 ... 售河北保定 200 省市销售河南郑州 100 省市销售河南安阳 100...

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

0 votes

233 views

1 answer

python - Why is my path moving in the opposite direction of the heuristic functions in A Star Algorithm?

Background I want to implement an A-Star Algorithm with a GUI for user input to set the start and end node, and draw obstacles. However, ... ,open) (1,1,open) (1,0,open) (0,0,open)...

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

0 votes

376 views

1 answer

vue中Render函数式组件，当无上下文时，slot要怎么用

例如父组件定义了一个header，在函数式组件内部应该怎么去写呢这里的ctx.slots.header并没有起作用,span没有显示还有请教一下大神，ctx中的slots和scopeSlots到底应该怎么使用呢？...

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

0 votes

239 views

1 answer

java - How to send email to GMail account using OAuth 2.0?

I'm trying to build a desktop email client in java that would be able to both send and receive emails. I don't want the ... am very new to java so any and all help is welcome (:...

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

0 votes

463 views

1 answer

最左原则，这种情况为什么会用到索引？

建表语句： CREATE TABLE `user` ( `id` int unsigned NOT NULL AUTO_INCREMENT, `name` char(10) NOT NULL, `nick_name` varchar(20) NOT NULL DEFAULT '' ... 实际测试，b c bc这三种组合也使用到了索引，是我哪里理解不对么？...

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

0 votes

463 views

1 answer

浏览器哪个事件里可以禁止浏览器对title显示默认行为？

ssr 加title 属性有利于seo，但要禁止浏览器默认title行为，我要自己写tooltip 样式。 <a :title="title"> 标签</a>...

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

0 votes

467 views

1 answer

vuecli怎么配置多页某个页面不引入任何js文件?

多页结构,其中某些页面是纯静态页面,不需要任何js,但是默认会有入口js和通用js,怎么去除? chunks给个[]也没效果啊 pages: { index: { // page 的入口 entry: 'src/index/ ... 包含的块，默认情况下会包含 // 提取出来的通用 chunk 和 vendor chunk chunks: [] },...

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

0 votes

791 views

1 answer

programming languages - Antonym for "optimize" in software development context

In the context of "optimizing" a set of data to a smaller, more compact form, what would be a word that would ... antonym of "compress", not "optimize"... any better suggestions?...

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

0 votes

125 views

1 answer

clientWidth计算不对

<template> <div class="choice"> <ul ref='ul' v-bind:style="{width:ulWidth+'px'}"> <li v-for="(item,index) in list" :key="item.id" ... 宽度时，每个li的clientWidth都是一样的这就有问题但是不知道为什么都是一样的 ...

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

0 votes

168 views

1 answer

SVG在iOS错位了

用SVG画了地图，用的text标签，上面显示有文字。比如中国两个字，本来有两个字位的宽度，在iOS端却显示了一个字位。也就是中国两个字重叠在一起有没有大神知道这是怎么回事？...

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

0 votes

594 views

1 answer

react子组件接收到了父组件传来的值，但是渲染时，子组件始终是初始值

目标效果希望点击添加按钮之后，弹出的模态框中默认值为空点击修改按钮之后，弹出的模态框，默认值为修改项的名称出现的问题在第一次点击之后，以后每次模态框中的值都是第一次点击时获取到的值，但是在模 ... : '请输入分类名', }, ]} > <Input placeholder='请输入分类名称' /> </Form.Item> </Form>...

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

0 votes

376 views

1 answer

python - How to use the Async def expression correctly?

I make an asynchronous web application (using aiohttp, aiodocker and so on). Should I use async def expression ... : str) -> datetime: return datetime.fromisoformat(date_string)...

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

0 votes

422 views

1 answer

流量大时网关处用异步线程进行统计操作的问题

譬如统计qps 每来一个请求为了不影响zuul正常流程就异步化，用线程池的一个线程去操作redis进行统计如果qps有点大，譬如几百这样有个问题就是java线程池或者redis池可能用光这样就统计不过来吧？用消息队列可否解决 ... 中间件也是网路io 为了不影响zuul正常流程也需要用线程池的一个线程去发消息这样java线程池也可能用光吧？...

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

0 votes

691 views

1 answer

angular - Type 'Observable<Promise<any>>' is not assignable to type 'Observable<myRec[]>'. Type 'Promise<any>' is missing

So I'm intending to let NG to deal with subscription during the lifecycle of a component, let it auto-subscribe/unsubscribe. ... myRec[]': length, pop, push, concat, and 26 more...

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

0 votes

741 views

1 answer

cron - How to run groovy script using crontab?

I've tried to run a groovy script, using crontab: 16 21 * * * root groovy /home/vasily/test.groovy But I have an error: /bin/sh: 1: groovy: not found...

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

0 votes

246 views

1 answer

python - Unweighted directed graph distances

Let's say I have an unweighted directed graph. I was wondering if there was a way to store all the distances ... direction for a good Python implementation of this kind of problem?...

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

0 votes

353 views

1 answer

VUE使用video-player视频插件页面滚动出现脱离文档流

h5播放video在android中滚动的时候脱离文档流怎么解决？如下我的代码： <div class="audiobox"> <video-player class="video- ... durationDisplay: true, remainingTimeDisplay: false, fullscreenToggle: true } } } },...

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

0 votes

307 views

1 answer

mysql group by 字段多，怎么优化？

比如现在有个sql语句是这样的：select count(score) from students group by school_name,grade,student_name students里面大概一百万条数据，怎么添加索引才能优化查询？...

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

0 votes

197 views

1 answer

javascript - How to hide table row using Jquery hide option

I've been in the process of learning JQuery. The below code is intended to add and change the dropdown options based on the ... > <option>Florida</option> </select> </tr> </table>...

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

0 votes

550 views

1 answer

duanshuilu.com的vue高仿京东商城的源码那有下载

有偿,谢谢,有教程也行...

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

0 votes

242 views

1 answer

类中的函数如何定义和调用任意数量的关键字实参？

...

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

0 votes

280 views

1 answer

怎么改变ant-design dropdown组件的offset

dropdown弹出来时（假如在trigger的下面弹出）与trigger的Y轴之间有大概5px的间隙现在要调整这个间隙应该怎么做？ google搜到了一个issues说有个dropdownAlign(文档上没有提 ... 真的是浪费大家时间了，不是dropdownAlign而是align https://github.com/ant-design......

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

0 votes

196 views

1 answer

python - SQLite - Combining Rows into New Columns

I am attempting to create a chatbot in Python 3.9 using my own text messages, but am having trouble formatting my data correctly ... 11:43 Yes 7 Incoming 2020-08-10 08:11:45 Great!...

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

0 votes

295 views

1 answer

android - remove previous logged in account in Facebook login for flutter application

I have successfully implemented the Facebook login integration with the flutter application The Issue I am facing is once ... used facebookLogin.logOut(); and then _auth.signOut()...

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

0 votes

260 views

1 answer

reactjs - jest is not able to find helper functions

i am using react-mobx store in my react project while running test-case jest is not able to find helper functions ... rootDir>/node_modules/babel-jest', }, collectCoverage: true, }...

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

Page:

« prev
1
2
3
4
5
6
7
8
9
10
11
...
715
next »

Recent questions in Technique[技术]

...