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Welcome to Our Knowledge Sharing Community-Open, Learning,Share
Welcome to developer's Knowledge Sharing Community-Open, Learning,Share 欢迎来到 程序员专属的知识分享社区! 一个分享知识,传递知识,学习知识的社区!...
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Feb 5, 2021
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welcome
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nuxt2.x 开发环境在IE11下报“对象不支持“entries”属性或方法“错,请问下大家怎么解决呢?
对象不支持“entries”属性或方法 有些页面又可以正常打开。...
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Jan 27, 2021
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nuxt2.x
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macos - "'<' not supported between instances of 'NoneType' and 'NoneType' " While working with StratifiedShuffleSplit's split() method
from sklearn.model_selection import StratifiedShuffleSplit split = StratifiedShuffleSplit(n_splits=1,test_size=0.2,random_state=42) for train_index, test_index in ... . enter image description hereerror message enter image description here...
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Jan 27, 2021
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arduino - Is there a possibility to get pseudo response from RS485?
I'm not very good at programming, but I am trying to make simple communication between USB to RS485 converter and arduino. I want to get instant response from ... to know if sending real data to the system there would be no data collision....
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android - Is it possible to run ML Kit in Robolectric unit tests?
I'm curious whether it's possible to run Google ML Kit in Robolectric unit tests. If I try, I get the following error: java.lang.IllegalStateException: ... test runs perfectly if I run it as an instrumented test (with AndroidJUnit4)....
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Jan 27, 2021
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echarts图例
legend是垂直排布的,怎么能把图例的文字放在相应icon的下方,有什么方法么...
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Jan 27, 2021
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element el-tree 设置动态禁用 延迟生效问题
发现出现不能及时更新禁用状态 要点击才能更新 而且是更新单个是什么原因 <el-tree ref="menuTree" v-model="roleActionVo.menuIds" :data="menuTree" show-checkbox node-key="menuId" style="overflow:?hidden;" ... => { return G(i, bool) }) } // 调用 R(Data, true) / R(Data, false)...
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Jan 27, 2021
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element
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opencv编译出问题。急!
...
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Jan 27, 2021
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Element的table里面上传图片后,如何改变同行其他列的值
需求:在表格里面点击【1】的上传图标选择图片上传成功后,同行的【2】会变成绿色的 下面是template代码 <el-table :data="tableData" stripe> <el-table-column prop="enclosureType" label="附件类型"/> <el-table-column prop=" ... 这个方法中写上传成功后可以把同行的isUpload的值变为true,但不知道怎么表示同行的isUpload的值,或者有其他更好的方法吗...
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Jan 27, 2021
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numpy reshape/transpose 3D to wide 2D
Make example letters = np.array([ np.array([ np.array(['a','a','a']) , np.array(['b','b','b']) , np.array(['c','c','c']) ]) , np.array([ np.array(['d', ... 'h', 'i', 'i', 'i']], dtype='<U1') I think I need to transpose... before reshaping?...
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Jan 27, 2021
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numpy
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项目中的git文件老是自动被修改,请问是怎么回事?
这里我没有改动,也没有拉取代码,它自己就会不定时的新增修改的文件...
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Jan 27, 2021
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微信小程序 视频的poster一闪而过
代码 <video id="banner-video" src="{{QINIU_URL + videoUrl}}" poster="{{QINIU_URL + posterUrl}}" show-center-play-btn='{{false}}' show-play-btn="{{false}}" controls picture-in-picture-mode='{ ... 试或者测试版的poster都会在作用滑动或者点击视频再次返回的时候会消失,然后点击才会再次出现...
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Jan 27, 2021
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微信小程序
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Vue插件什么时候需要传插件实例给Vue构造函数
在用 vue + element-ui + vue-router + vue-i18n 刚开发完一个项目后,看到 vue-router 和 vue-i18n 都传了实例给 Vue 构造函数,而 element-ui 没有,想问问什么时候该传,什么时候不用传,原理是什么? 我的项目构造 main.js 文件: new Vue({ el: '#app', router, store, i18n, components: { App }, template: '<App/>' })...
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Jan 27, 2021
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css - How to present website on different devices?
I've been wondering about one thing, but I don't really know what to call it. On some websites, they put an image with the website being presented on ... technique or is there an online tool that makes this possible? Here an example image...
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Jan 27, 2021
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css
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python - Installing/using p5py/p5 under Anaconda
I have coded some projects in processing that I would like to continue in python under the python port p5py/p5. I am using Anaconda as my Python environment, ... not a pressing issue to me so suboptimal workarounds would also be of help....
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Jan 27, 2021
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python
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django中app模块找不到
环境介绍 django verison=3.13, python version=3.9.0 因为要使用多个app,遂在项目目录下创建了apps这个文件夹放置其他app,在settings.py中也添加了系统路径,但问题就在这里,如下: Pathlib方式 sys.path.append(Path(BASE_DIR).joinpath(' ... , 'apps')) 就很正常的启动了 疑问??? 有没有人遇到这个问题的?Pathlib在被django解析的时候出问题了?...
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Jan 27, 2021
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IDEA提示错误 java.lang.ClassNotFoundException: com.mysql.cj.jdbc?
java.lang.ClassNotFoundException: com.mysql.cj.jdbc at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass( ... 吗,可以修改数据库内容,但查询就给我报错 枯了...
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Jan 27, 2021
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IDEA提示错误
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elasticsearch可以实现推荐用户的数据一直是最新的吗,且数据不是重复的吗
elasticsearch可以实现推荐用户的数据一直是最新的吗,且数据不是重复的吗...
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Jan 27, 2021
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Technique[技术]
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71.8m
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0
votes
858
views
1
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web deployment - 404 Failed to load resource Deploying Flutter Web App to GitHub Pages
I am trying to deploy my Flutter app to GitHub Pages. App runs fine with flutter run -d chrome and builds successfully using flutter build web --release ... start... GitHub pages link: https://learyjk.github.io/superpacecalcweb/ Thank you!...
asked
Jan 25, 2021
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Technique[技术]
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web
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votes
613
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windows - where & which build path I've to set for StatusCode method. please let me know
package api; import io.restassured.RestAssured; import static io.restassured.RestAssured.*; public class First_lecture { public static void main(String[] args) { // TODO ... maps/api/place/add/json") .then().assertThat().statusCode(); } }...
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Jan 25, 2021
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Technique[技术]
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71.8m
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windows
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votes
817
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1
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Dart ffi - Reading emojis from file with C
I am saving a File with UTF-8 encoding which contains some information including a name for a button from Dart side with the following code: file.writeAsString([ ... I expected it to work with emojis. can anyone help me solve this issue?...
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Jan 25, 2021
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Technique[技术]
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71.8m
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Dart
0
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802
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reactjs - Declaring Generics in React Typescript Function Component
I am working on a TypeScript React component whose props also take a generic type, so I declare the React component as export interface MyCompProps<T> { ... with TypeScript compiler. What would be the proper syntax to achieve that goal?...
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Jan 24, 2021
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Technique[技术]
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reactjs
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537
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java - How do I value a label using a database information?
I want to display the information in a database table using multiple labels. This information for each person is unique ... ; displayProfileDetails(jobDisplayQuery, JobLabel); displayProfileDetails(passwordDisplayQuery, passwordLabel); }...
asked
Jan 24, 2021
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Technique[技术]
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71.8m
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java
0
votes
1.2k
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1
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sql server - How to loop through JSON array to insert rows in SQL Table using TSQL?
I have following query where I would like to insert data from JSON: INSERT INTO EncExt ( reference ,system ,code ,display ) SELECT JSON_VALUE(record, '$.id') AS ... "value":"ENCTR_SK" } ] } Image of record column where JSON objects stored:...
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Jan 24, 2021
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Technique[技术]
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71.8m
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sql
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719
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javascript - How can I Execute NodeJS Server Client Side With Html Button Or Alternative If Not Possible?
Intro: Hello. So I started on a chat based social media app with Socket.io, but it seems like the client needs to open a localhost server to be able to ... to do this sort of development for school and I just want some clarity. Thank you!...
asked
Jan 24, 2021
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Technique[技术]
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javascript
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c# - Transform Keras .h5 model to model usable by Emgu (OpenCV)
I'm a newbie in image classification. I've created a model with the easy-to-use website https://teachablemachine.withgoogle.com/train/image The trained model ... no success. I would like an easy way to achieve this. Thanks. Paludour...
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Jan 24, 2021
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Technique[技术]
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71.8m
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c#
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votes
786
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webpack单独打包压缩一个文件夹?
需求:项目中有一个文件夹,里面是一些依赖关系复杂的js,文件夹外也有引用这些js,如何使用webpack打包压缩文件夹中所有js,并保证文件夹之外的引用不报错? 谢谢! 1.gulp-concat不会自动解析依赖,并且直接合并会报错 2.webpack entry好像不能读取文件夹路径,只能指定js?...
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Jan 24, 2021
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Technique[技术]
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深蓝
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71.8m
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0
votes
728
views
1
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思否前端用了什么技术?
vue能不能做?...
asked
Jan 24, 2021
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Technique[技术]
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71.8m
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0
votes
596
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r - Safest and most efficient way to do a conditional mutate with dplyr
I wonder what is the best way to apply mutate to a subset of the data, without removing data from the dataframe. For instance, I would like to calculate the mean ... opinion on this? Is there a "tidier" way to do this? Thanks in advance!...
asked
Jan 24, 2021
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Technique[技术]
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r
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