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java - How count a mongodb collection with ReactiveMongoTemplate without any query filter?

I would like to determine mongodb collection size in my java spring application. I know that reactive rective Mongo ... Is there any better solution for this problem? Thanks!...

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

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element中如何给table中悬停行时添加提示文字？

比如说，鼠标移动到其中一行，该行上边显示双击打开详细内容。这该怎么做呢？...

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

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foreach 中写添加同步属性总是报错

在foreach中加同步，总是报错，要怎么样加才行呢？...

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

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nodejs 似乎没有特别好的微信公众号的sdk？

像PHP有https://github.com/overtrue/w...，nodejs没看到有特别好的封装库...

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

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javascript - How do I return the response from an asynchronous call?

I have a function foo which makes an asynchronous request. How can I return the response/result from foo? I tried returning ... ); return result; // It always returns `undefined` }...

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

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253 views

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javascript - Touchmove event listener animation speeds up each time it is used

I have a very simple slider and I use the touchmove event listener on it. The thing is, I have to reload (changing ... animation is faster. On the first time, it works as expected....

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

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nginx重启瞬间有请求进来，怎么办？

最近在看无中断更新系统，其中一个策略“滚动部署”，利用nginx来逐步停丢部分转发，来更新系统。比较疑惑的是，如果在修改完nginx配置后，reload命令的瞬间，有请求进来，是不是这个请求就丢失了？那这样还算是无中断更新系统吗？...

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

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python - Rescaling the bounding box annotations in a stitched image

I have two images stitched together just as shown below: Each image is of resolution 1024 x 1024. This infers the total ... X direction to get them in the 1-1024 pixel regime?...

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

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python进程池，当target函数中遇见某些情况要立即退出本次任务，跳到加载下一次任务怎么实现？

def run(idx): invl = random.randint(5, 20) if invl > 10: sys_exit(0) else: sleep(invl) pool = Pool(3) for i in range(1, 10): rslt ... 后三个进程不能被join，而且每次都是fork新的进程，也没有复用前面被exit的进程号 ...

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

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Unable to run Visual Studio 2017 Enterprise update for December 2020

Currently I have two servers with Visual Studio 2017 Enterprise that I have to update manually each month for Microsoft ... reinstalling) to force an update for VS 2017 Enterprise?...

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

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550 views

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vim - aw text object and whitespace characters

In Practical Vim, page 130, the author states: The aw text object ... include(s) any whitespace ... present leading whitespace only if trailing whitespace is not present...

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

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646 views

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线上服务器sql的where条件不生效，什么原因？

同一套代码，同一个数据库，线上跑，where条件不生效，本地跑正常， sql： select a.* from table1 a left join table2 b on a.id=b.userId where a.score > 0...

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

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安装链码时为什么报了can not find package 的错

安装链码失败: installing chaincode failed: Multiple errors occurred: - Transaction processing for endorser [localhost:7051]: ... ) /go/src/github.com/hyperledger/fabric-protos-go/peer...

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

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1.2k views

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redis lua 脚本异常中断已经set了的key 会回滚吗？

redis lua 脚本异常中断已经set了的key 会回滚吗？...

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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309 views

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引入的JAR包内逻辑有错误，该如何适配？

在我的工程中引入了一个依赖的jar包，但是后来发现这个包内有段逻辑写的有问题，在不修改这个外部依赖的情况下，如何在本工程内覆盖或者修复相应逻辑呢？...

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

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Using OR with AND conditions Simultaneously into AdoTable Filter in Delphi

I am tryin to apply following filter on a AdoTable component but it shows error: ((details_id = 15) OR (details_id = ... help but could not to solve it. Special Thanks in advance....

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

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1.5k views

1 answer

element-ui 在表格中使用树形控件，点击子节点，如果下级节点数量超出屏幕高度，就会关闭所有节点

点击子节点后会有弹出下级节点的动画效果，然后马上所有节点都被关闭；如果子节点的下级节点数量没有超出屏幕就是正常的...

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

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antd 的table在编辑单元格时，不走接口，全部编辑完点击保存按钮，再走接口可以吗？

用的antd的V3版本 https://3x.ant.design/compone... 没找到可以点按钮的方式，都是监听input 的事件，想在点击保存时再走接口，有可以实现的方法或者思路吗？求大佬们围观...

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

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k8s dashboard: Metric client health check failed

我执行如下命令安装 k8s dashboard: kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.4/aio/deploy/recommended.yaml 之后发现 ... : 1.19 kubectl 版本: 1.19 有人知道这是什么问题吗？...

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

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281 views

1 answer

引入的JAR包内逻辑有错误，该如何适配？

在我的工程中引入了一个依赖的jar包，但是后来发现这个包内有段逻辑写的有问题，在不修改这个外部依赖的情况下，如何在本工程内覆盖或者修复相应逻辑呢？...

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

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1 answer

vue的动态组件, 每个组件都有不同的slot怎么处理？

每个组件都有slot, 而且有的组件有一个slot，有的有多个slot，那么我在父页面如何写？比如组件1是 `<template> <div> <slot></slot> <loading></loading> </div> </ ... keep-alive> 怎么在调组件1的时候传组件1的slot，在调组件2的时候传组件2的两个slot呢...

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

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187 views

1 answer

Docker-compose volumes sharing issue with /app folder

I'm trying to build a web application based on flask and vue.js, using docker containers. I use volume sharing in docker ... if the WORKDIR has the same name as the target folder?...

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

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259 views

1 answer

python - How to swap two widgets' x position in tkinter?

I need to create a function that takes as a parameter two widgets and the frame they are placed. I want to swap their ... the right way of doing this? Is this the right approach?...

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

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254 views

1 answer

javascript - FullPage.js Scrollable Container - Wordpress

Desired Result and Problem I am using fullPage.js for page scrolling for the sections on my website. The portfolio is not ... scrolling back - a white block is left below the grid...

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

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151 views

1 answer

javascript - express-recaptcha : ReferenceError: config is not defined

recaptchaConfig() { this.recaptcha = new Recaptcha( config.service.recaptcha.client_key, config.service.recaptcha.secret_key ... this error: ReferenceError: config is not defined...

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

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394 views

1 answer

如何评价ferry开源免费的工单系统（作者提问）?

系统吸取更多有用的建议，更好的完善系统。 https://github.com/lanyulei/f......

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

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1.5k views

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请问 webpack import 的顺序与流程是如何的？我如何知道我要打包的是哪个位置的js文件？

前端的技术环境是 angular10 + angular CLI 我在js文件中很正常的 import 了一个 NPM 包 import { DA_SERVICE_TOKEN} from '@delon/auth'; 这个NPM包的目录结构如下： ... with Ivy enabled.n')" && exit 1" } } 最后：跪求大佬解惑~~！！...

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

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