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r - Ubuntu, how to deal the error "<stdin>:1:10: fatal error: git2.h: No such file or directory"?

I am trying to install the easypackages R package on R 3.6.1 on miniconda, which requires the installation of the gert ... using an Ubuntu 16.04.7 LTS operating system. Thank you...

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

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robotframework - How do i enable breakpoints in my Robot framework test in Pycharm?

My .py files in Robot-Framework allows me to introduce breakpoints but .robot file it doesn't allow. How do i ... and toggle breakpoints in my .robot test files for debugging?...

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

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How do I declare an array of json in kotlin

I'm a beginner with kotlin and Android Studio and I'm trying to declare a json array in a data class. This class is used ... to declare my Json so what is the proper way to do it?...

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

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go web 参数获取错误

go iris web 框架，同时有两个请求到达go的时候，参数会有上次请求的部分参数最后导致json序列化时失败 readObjectStart: expect { or n, but found , error found in #0 byte of .. ... 部分以前的请求参数混入其中导致json序列化失败，请问下这个问题怎么解决，原因是什么？...

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

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dplyr - Performing Mann-Whitney (Wilcox) Test on Grouped Data in R Studio?

I have a dataset that measures the abundance of macroinvertebrates from multiple sample sites. I wish to compare results ... to change to get different results for each basin?...

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

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element-ui el-checkbox 如何获取当前选中行的数据

<el-checkbox-group v-model="checkAll" @change="handleCheckChange"> <el-checkbox v-for="(item, index) in list" :label="item" >{{item.label}}</el- ... 经选中的多条数据，怎样做才能同时获取到我当前点击的一条数据呢？...

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

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c# - How can a .Net 5 Visual Studio Project / Solution that reference a .Net Core 3.1 NuGet package compile successfuly?

Right to the point: How can my Visual Studio Solution / Project written in .Net 5 successfully compile and run when it ... would be helpful. I am just trying to understand this....

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

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微服务组件的前端代码分布在每个微服务中，用一个前端项目做聚合的思路好吗？

首先请您理解一下业务：我们一直按业务做模块化，一个微服务模块包括后端代码和界面传统的java开发的微服务，mvc模式（后端渲染）下，界面（jsp或freemarker)代码也放在同一个java工程里，这个微服务的开发者通常是前后台一起开发我们 ... 用再由前端团队单独处理也不合适，而且分为前后端团队后，成本加大很多，两边都要精通业务请大家不吝指教！...

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

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How to hide Series Name in HighCharts Tooltip when using pointFormatter

How to hide Series Name in HighCharts Tooltip when using pointFormatter Please find below my JSfiddle example link: [https://jsfiddle.net/3peLzu6s/2/][1]...

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

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Communication between Raspberry Pi Python and Arduino

This is my first post so please excuse if it's not perfect. I'm currently having some problems with hooking up my Arduino ... wurde empfangen: "); Serial.println(nr, DEC); } }...

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

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mysql only_full_group_by 以及group by问题

CREATE DATABASE IF NOT EXISTS footprint; use footprint; CREATE TABLE footprint( event_id varchar(50) NOT NULL , student_id varchar(50) NOT NULL , ... 照需要正常返回的，但是5.7.5版本之后，就不行了 ...

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

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如何限制el-scrollbar滚动条组件的最小高度？

如图所示，当数据特别多的时候，滚动条自适应变成了特别小的点状想问一下如何限制这个滚动条的最小高度呢？尝试了下面两个办法都存在bug 1.在css中直接对 el-scrollbar__thumb 设置 min-height 导致高度移动出现bug 2 ... 的红色改为跟伪类一样，这种错觉就更明显了）所以有什么办法能限制该滚动条的最低高度，且正常滚动呢？...

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

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为什么django服务后台启动正常，但是网页访问，后台没有请求记录？

前台只能访问一个页面，然后就报服务器错误，后台如图所示，没有任何记录...

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

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java - I want to have just one key as the input of init method in cipher when encrypting by changing the algorithm

I am using init method in Cipher class and I have two keys as input but I want to have just one key the algorithm ... /CBC/PKCS5Padding" how can I do that ?? thanks for answering...

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

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css颜色多个地方引用，修改时很麻烦，有什么解决方法？

在一个项目中有多个地方都用到同一个颜色，以后需要改颜色时每个地方都要改很麻烦，一般是怎么解决这个问题的？...

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

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webpack 加了 external ，页面代码中还需要写 import 吗？

如图 webpack配置：页面代码：加了external ,页面又写了import，webpack是否不排除任然打包进去？...

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

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java - Retrofit2 response.body() returns c.f.a.r0@13b62af9

Retrofit2 returns c.f.a.r0@13b62af9 when I call response.body(), thus I cannot parse the content. Am I ... + response.body()); restaurantUtils = new RestaurantUtils(dateToFormat);...

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

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使用Exchange Webservice(EWS)发起会议邮件，怎么去掉下面的线、when和where

...

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

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javascript - Editable Table - Make Last Row Not editable

I am following this link: Editable Table Jquery PHP with MYSQLi and I have it going well for the most part, but I want my last ... .length-1); but I'm not sure where/how to use it....

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

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html - My browser will not display special characters

I have linked my HTML code here. Why is it that when I open this file (locally) on my computer, some special characters will ... <body> <p> dniqwn qwnid wqudn <inwqd </p> </body>...

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

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I have written two codes to explore test messages and create models to predict if a message is a spam or not. In ... the difference between both of these it'd be really helpful....

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

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关于vue 使用element-ui问题

element-ui里面table的值可以多选????然后我带调取接口重新获取?又没有选中了,有啥办法可以继续选中??不让他清掉啊...

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

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cef和electron差不多吗？

cef和electron差不多吗？除了一个原生接口一个C&C++一个Node&js，还有啥区别...

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

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react中，关于在componentDidmount()中请求数据的问题

之前看文章说，不推荐在componentWillmount中请求数据，事实上这个方法也不推荐了(变成unsafe方法了) 那么有个问题，如果componentDidmount中请求数据，用来改变组件的state 因为其顺序在render之后那么每次完整的初始化，就肯定会初始化两次了不知道我理解的是否正确？或者有什么更好的方法吗？请赐教哈...

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

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为什么用selenium爬网页出现这种异常提示？

这几天想用selenium爬网页信息，简单写了一个但是总报错，找不到问题原因，各位帮我看看呗,大家可以直接执行我下面的代码，看看报错信息 from selenium import ... the DOM, it is not in the current frame context, or the document has been refreshed...

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

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kofax - Unique KTA Job name

In KTA when you create a job it will create unique jobID (GUID). Is it possible to associate my ... -[dateTimeStamp]? FYI: I am using jobService.CreateJobWithDocuments method...

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

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python - How to generate an executable from an AWS-chalice application?

I have an AWS-chalice project and I want to generate an executable form this project. So instead of running chalice local to start a local server, I just call the executable file....

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

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在java中这个cursor 和chunk 是什么关系？

private long trunckCursor = -1; if (printState == printStateReadChuncked) { //数据分片处理 if (trunckCursor <= 0) { trunckCursor = headerSplitByte; ... 看到这个代码？一直不知道这个cursor 啥意思为啥这里是-1？...

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

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