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204 views

1 answer

reactjs - Is it possible to give related items in a collection the same ID?

I'm building a simple MERN application, where users submit reviews about cafes. I'd like users to be able to click on a cafe name ... </Link> ) }) } </div> ) } export default Cafe...

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

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105 views

1 answer

react-ace回报不能执行JavaScript的错,这是为什么?

...

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

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330 views

1 answer

optimization - Implementation of specfical region refresh with Java Swing

The number of models that my swing application needs to display is currently 2000 to 10000 images. After multiple zooming ... increase and will not decrease,How can I optimize it?...

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

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144 views

1 answer

python - only allow 'same' number input

about the code: I wanted to create a game that you need to write only the number 8 and reach 1000, if you didn't reach ... print(f"Your total number is: {all}, try again. ") break...

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

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1.7k views

1 answer

unable to save files to django model through rest api serializers

I am trying to use djangrest api to upload multiple files to a single model, while trying to do so, though I can ... where I am doing wrong . Any help will be much appreciated...

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

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130 views

1 answer

chorme浏览器异常

谷歌浏览器，任何页面一打开调试台就变成这样子的，有遇到过么？ mac、chrome84.0.4147.105...

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

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240 views

1 answer

javascript - React child useEffect triggered earlier than parent useEffect

While app rendering, child Component useEffect triggered earlier than parents Layer useEffect . Why it happens and how to fix ... Component; Usage: <Layer> <Component/> </Layer>...

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

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1.5k views

1 answer

elementui 如何自定义排序，从第二行开始排序

如下图，后端反一个总计给我，但是点击sortable进行排序时，总会将第一行的总计一起带入排序，希望能将这个总计一直放在第一行，不参与排序 <el-table :data="reportTable" :model="reportTable" @sort- ... ，但是还是不行，到底哪儿出错了呢？希望走过路过的可以指点指点，多敲敲我的脑瓜，谢谢！！...

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

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340 views

1 answer

在AI方面，AWS能提供针对性服务吗？

在AI方面，针对特定行业的具体需求，AWS是否能提供更有针对性的服务？...

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

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322 views

1 answer

关于自定义字体的问题？

场景使用自定义字体 impact.ttf(大小为200kb) chrome第一次进入页面总是加载失败，导致无法显示后端返回的值但是Firefox能够正常加载该字体，并且正常显示该如何解决这个问题解决方案使用fontfaceobserver插件解决...

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

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424 views

1 answer

vuex和redux 在实际开发中有必要每个组件使用单独reducer,action吗？

难道组件只有一个很简单的异步数据也要创建自己的一套动作文件？这样会不会很麻烦？...

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

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534 views

1 answer

react 项目把页面的数据导出到表格并以base64的形式传递给webview

react 项目把页面的数据导出到表格并以base64的形式传递给webview...

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

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315 views

1 answer

java - custom getter method not working in projection in JPA

I have one entity named Employee. I have created one interface (projection) also. In my Employee entity, I have one column named gender ... "Mike Thompson", "gender": "M", . . . }...

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

0 votes

211 views

1 answer

js数据转换问题

上面这种数据类型怎么转换成下面这种，在线求答案...

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

0 votes

653 views

1 answer

html - Cannot convert this string into an image

I ... ...

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

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212 views

1 answer

c++ - getting the object's skeleton

I am using the code to get the skeleton of an object from this article: http://felix.abecassis.me/2011/09/opencv- ... please tell me why this error appears and how to solve it?...

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

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1.9k views

1 answer

echarts 报错Cannot read property 'getDisplayList' of null

拖动滑块时，加载更多数据，就会报这个错误，有大佬知道什么原因吗？...

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

0 votes

514 views

1 answer

vue编译时正常，运行时报错Cannot read property 'getters' of undefined是怎么回事

如题，vue的项目编译能通过，但是浏览器运行时就报错，如下无法定位到错误的地方。有大佬知道这是怎么回事吗...

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

0 votes

425 views

1 answer

keras - Very high classification threshold on CNN output to get good performance. Normal?

I am trying to train a CNN on football games audio to predict highlights. The data is composed of MFCC Spectrograms (https ... model? Or am I just lacking data/overfitting a lot ?...

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

0 votes

554 views

1 answer

Leader 要求将现有 MySQL 中的一个表以很细的维度大量分库分表，这会带来什么问题？

我们业务中有一个 DB，慢慢到了千万级别，而且有不少比较复杂的联表查询，导致性能慢慢成为瓶颈，因此分库分表被提上议程基于我们的业务属性，这个表的每一行数据有两个可以用于分表的属性，这两个属性，相当于大类和小类 ... 是有限的请问各位，其他还有写什么问题吗？此外，是否有对于大量分库分表的一些分析测试数据呢？Leader 的方案是否可行呢？...

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

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404 views

1 answer

composer安装workerman提示 proc_open，需要处理吗？

使用composer安装workerman提示： The Process class relies on proc_open, which is not available on your PHP installation. 需要处理吗？百度查过了，要在php ... 百度查的答案处理吗？还是说proc_open函数被禁用也不影响workerman的使用？...

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

0 votes

605 views

1 answer

logging - Migrating log4j1.x to log4j2: Rolling appender filepattern when java system property contains filename

I am migrating my application to log4j2. Currently in my application, log filename system property is set in tomcat ... . Can someone help me on the correct approach here?...

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

0 votes

417 views

1 answer

amazon web services - How to run rds sql seed script in cdk

i'm trying to rewrite my infrastructure to cdk, I want to create ECS cluster with rails app with RDS MySQL, but ... I add mysql user with credentials from SSM with specific GRANTS?...

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

0 votes

182 views

1 answer

Forge如何设置当前视图为前视图

我先设置了初始化的视角oViewer.setViewCube('top')，但是发现旋转起来很难受，应该把oViewer.setViewCube('top')这个视角设置为前视图就正确了...

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

0 votes

368 views

1 answer

logging - Suppress python logger for a specific requests call

I am using session.request call multiple time at multiple places. I want to block its log for a specific call. How ... that I can disable them for a particular function of call?...

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

0 votes

655 views

1 answer

vscode格式化，beautify应该怎么设置，花括号内的没有缩进，还是用其他插件？

安装了beautify插件，但是格式化之后，花括号里面的内容没有缩进，如图：添加这个配置也不管用 `{ "brace_style": "none,preserve-inline", "indent_size": 2, "indent_char": " ... "css": { "indent_size": 2 } } 应该怎么配置啊，需要安装其他插件吗 `...

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

0 votes

194 views

1 answer

python - Is there a package for the problem of imbalanced data in classification for time-series data?

For the problem of imbalanced data in classification, there are sampling methods in the imblearn package in python. But they ... data. Is there a package for time-series data?...

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

0 votes

229 views

1 answer

python - Pandas to understand inconsistent seperator for csv files

Depending on the regional settings the csv file exported from excel may be different thus giving me error in my script. ... fix this issue. Does anyone knows how to achieve that?...

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

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