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500 views

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初学Python，自己尝试着写了一个爬虫，主要代码如下 import json import scrapy from bs4 import BeautifulSoup from docx import Document from docx.shared import Pt class ... 方法，还是没法解决希望哪位大佬可以指导我一下，万分感谢 ...

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

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648 views

1 answer

php - MySQLi SELECT statement requires LIMIT

I'm trying to display a listing of 6 columns from a database table. This table happens to have a bit over 30,000 ... and MySQLi and the new code isn't working the same way....

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

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585 views

1 answer

java - Clicking on a drawn object

I've got a class called Shape which inherits from JPanel. A number of sub-classes in turn extend the Shape classes, ... when I have clearly clicked inside the shape. Any ideas?...

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

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892 views

1 answer

Is the Cordova Device UUID the same as the Capacitor Device UUID?

We are migrating from an Ionic Cordova app to an Ionic Capacitor app. While I know that Capacitor still ... /src/main/java/com/capacitorjs/plugins/device/Device.java#L43-L45...

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

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808 views

1 answer

python - How to divide list according to index position?

I have a combined list of lat, lon and alt in a sequence as shown below, now I want to divide the list into 3 ... of them worked. Can anyone help me to get the expected output?...

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

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1.2k views

1 answer

axios中get请求可以使用表单提交FormData吗？

前端新人，最近在做一个支付接口的对接，接口是get请求：但是请求之后报has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the ... 种方法后还是报想同错误，请问各位大佬使用axios的get请求如何进行表单提交？...

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

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1.6k views

1 answer

表单radio组种嵌套一个input，如何在选择radio之后，清空input

现在在做一个表单，其中有一项，本身是radio3个选项，然后还有一个“其他”，即一个input。例如 QuestionRadio [1]A [2]B [3]C [4]其他:_____ 现在的问题是，如果用户先点选了其中一个radio，input也会显示radio的内容。因为属性里是同一个value值。新人经验不足，请问这种情况，怎样来处理比较合适。...

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

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1.6k views

1 answer

python - How do I make a copy of a GradientTape object in tensorflow? (Monte Carlo App)

I have an expensive initialization op before I perform my calculation in tensorflow. My code looks something like this: x ... shouldn't matter if it was persistent or not)? Thanks...

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

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2.2k views

1 answer

yarn - Hadoop ResouceManager is shutting down in Windows 10

I was trying to install hadoop 3.0.0 in my windows 10 following this tutorial. My java version is "1.8.0_271". When I hit 'start-yarn.cmd' ... *******************************/...

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

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1.9k views

1 answer

为什么计算结果返回-0

我在DolphinDB GUI中执行下列代码： x=table(103.6994 103.6994 as a,`a`a as b) select 100-(first(a*100)/last(a)) as res from x group by b 这个计算结果给我返回了-0，为什么会带一个负号？...

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

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2.4k views

1 answer

vue，table的data更新了，而插槽内的数据如何及时更新

我这里动态渲染的表格，点击“+”上传图片之后想把临时的图片链接temUrl渲染上去：这个manageTableData的原本没有temUrl对象，现在我调用函数把这个对象加进去：完了之后表格的图片没有及时更新，咋整？（但打开控制台后就更新了，就是更新太慢了，怎么办？）...

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

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2.4k views

1 answer

怎么查看哪几个用户正在使用哪个节点

如题,有没有函数可以查看当前某个节点正在被哪个用户的哪个程序所使用?...

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

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2.9k views

1 answer

判断一个status的状态,如果状态为1开始计时,并将时间存入数据库,请问该怎么做?

// If the status is 1, the time will be recorded and stored in the database, MySQL database if (status == 1) { long start = System. ... :21,如果状态为0,则停止计时,请各位大佬帮忙想想办法,谢谢...

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

0 votes

3.1k views

1 answer

请问Ant design pro中页面不停地在发送umi请求是怎么回事?

如图所示...

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

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3.6k views

1 answer

reactjs - AntDesign forms or React Hook Form

i was searching which are the differences and the advantages/disadvantages of using one or another but i couldn't ... library or simply use the AntDesign form validation? Thanks...

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

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3.7k views

1 answer

kubernetes - Autoscaling in GKE based on RabbitMQ Queue Size

I am very new to both Kubernetes and RabbitMQ, but I am attempting to autoscale pods based on the number ... not being delivered or suggested alternate routes would be appreciated....

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

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3.5k views

1 answer

倒计时多次调用出现多个倒计时

我封装的代码： function CountDown() { var maxtime = 120; var timer = setInterval(function () { maxtime--; var minutes = Math.floor( ... maxtime一直被定时器调用，调用一次CountDown，就会创建一个maxtime，该怎么办啊 ...

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

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3.3k views

1 answer

搭建个人博客的疑问点？

请问一下： 1、文章内容是怎么存储的，具体流程是啥？不会文字全部放在数据表中吧？ 2、一般的个人博客的数据表怎么设计、有知道的大佬辛苦解答一下...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

Question about c# and string outside the class or function vs string inside a class or function

I know that string is a reference type, but I'm having problem understanding why string outside the "refTest" class or ... ReadLine(); } } class refTest { public string rName; }...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.3k views

1 answer

sapui5 - Custom ProcessFlowNode Control Not Rendering

Table of Contents: Objective + Background, Problem, How Standard Process Flow Looks + Sample Code, My Code, Problem Reiterated ... custom nodes are not: Why? How can I fix this?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

对话框中的div不随对话框滚动而滚动

怎样实现对话框中的div不随对话框滚动而滚动？例如：对话框中有两个div，分别是div1、div2，想当对话框滚动时如果div2大于对话框那随着滚动，到div2结束时，继续滚动div2保持不动...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.9k views

1 answer

MySQL str_to_date 如果字符串中没有年怎么补上？

格式完整的字符串时间可以通过str_to_date转换为标准时间但是这种没有年份的数据，转换后年份为0000：这种怎么在转换后，补上2020？已解决： ... RIGHT(str_to_date(chengjiao,'%m-%d'),6)) as sell_time,sell from table_name ORDER BY sell_time...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.9k views

1 answer

Is there any possible issue of using Solr 8.7 in cloud mode on Zookeeper 3.4.5

I am implementing Solr 8.7 in cloud mode with existing zookeeper 3.4.5. Is there any possible issue? Couldn't find any compatibility matrix. Thanks in advance....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.7k views

1 answer

scala - spark.sql.AnalysisException: Text data source does not support binary data type

I have a Spark Structured Streaming job, it reads from a Kafka topic and writes it to an ... .spark.sql.execution.streaming.StreamExecution$$anon$1.run(StreamExecution.scala:193)...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.1k views

1 answer

NetSuite Custom Search in Java

I'm new to Oracle NetSuite and I'm trying to do an integration in Java. I'm using this code to made the ... and TransactionSearchBasic() but so far, none has helped me. Thanks....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.1k views

1 answer

No instances available for xxxxxx

问题描述观看尚硅谷学习Spring Cloud Alibaba 出现的问题消费者调用服务端出现 No instances available for nacos-payment-provider 问题出现的环境背景及 ... .java:93) ~[spring-web-5.2.10.RELEASE.jar:5.2.10.REL...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.9k views

1 answer

python - Removing empty rows before aggregation

I have a list of dataframes (with datetimeindex), the minimum time (date) between two rows in each dataframe is 15 ... The error: ValueError: Degrees of freedom <= 0 for slice...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.7k views

1 answer

sass打包不会引入node_module中的资源

我用rollup-plugin-postcss打包样式sass样式，打包后的文件中，从node_modules中@import的样式没有被打包进去。如：打包前 @import '~xxx'; 打包后 @import '~xxx'; 如果是直接引入自己写的scss没问题。求指教～...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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