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3.3k views

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No module named 'requests' error for a Python Lambda in Cloud9 - I am not using requests at all

I am writing a Python Lambda in Cloud9. Trying to run it (locally, before deploying to the backend), I'm receiving this error: ... "body": json.dumps("TEST"), } What am I missing?...

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

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java - Log4j alternative for Cross-platform Logging system

I'am trying to set up a logging system to collect logs from projects developed with different languges ( Python and Java ... have a solution for this ? Any alternative to try ?...

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

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javascript - Loop json data and display in table inside modal

I am having trouble looping through a JSON object and displaying certain values in a table. On that table, there is a view button ... ="modal">Close</button> </div> </div> </div>...

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

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r - summerize NA, count BY GROUP

I have this data frame for the test: test_df <- structure(list(plant_sp = c("plant_1", "plant_1", "plant_2", "plant_2", " ... in the group and 0 "NA" can you help me? thanks Ido...

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

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go - Graceful stop of gin server

I'm trying to implement a clean way of gracefully stopping my gin server using a parent context passed to my class. Here ... ("Server forced to shutdown:", err) } return nil }...

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

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javascript - Ionic React route changes url, page is blank

I am workin with Ionic 5 and React. I have a component called ShowListing that i am trying to display after being ... displayed, even after refresh. Any ideas how to solve this?...

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

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判断文件是文本文件还是二进制文件

java如何准确的判断文件是文本文件还是二进制文件？...

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

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1.8k views

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hibernate - Exception handling in Spring Boot with JPA

I've made a class that is annotated with @ControllerAdvice to catch Exceptions. When I do ... getTime()); return accountabilityModelDAO.saveEducationModel(accountabilityModel); }...

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

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Exclusive Column in Promotion Table Shopware 6

does anybody knows what the exclusive column means in the promotions table in the database? It seems to be always false. When is this changed to TRUE ? What is it used for?...

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

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Python 3 : Two or more tuples as arguments

Is it possible to unpack two tuples as an argument of a function in Python 3? The code goes like this... def ... code to compare elements of tuple1 to elements of tuple2 Thanks!...

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

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1.7k views

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在vue脚手架中使用ts，为什么webpack entry 不支持ts 而js是可以的

本人亲自试过js是可以获取到的，而ts不行，ts就报错，前端菜鸡求大佬回答！！！ ./src/main.ts in multi (webpack)-dev-server/client?http://localhost:8080 webpack/hot/dev-server ./src/main.ts...

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

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div中设置line-height，影响li中的展开动画，请问这是为什么？怎么解决？

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale ... .sub').slideUp(100) }) </script> </body> </html>...

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

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javascript - Vue js:filter on array not working in my code

in my Vue js code i've created a search input with dropdown, the data of drop down are API data array categories i'm ... .categories = response.data.response; }); }, }; </script>...

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

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请问大佬用elementui的tabel组件能实现这样的功能吗

就像图中在表格的每一列顶部增加一块自定义的区域，大佬们elementui的话有没有什么好的解决方案呀？...

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

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1.8k views

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vue能否动态绑定一个class同时满足两个条件？

...

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

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1.0k views

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关于setinterval和js单线程的困惑

我的个人理解 JavaScript是单线程的，使用setinterval是定时给这个单线程添加事情，那么我使用两个setinterval去请求两个不同的数据接口，就不会存在并发，按队列顺序请求数据，那么为什么使用setinterval去请求数据接口会出现卡顿...

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

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1.3k views

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es6怎么获取对象中的数组对象的个数

怎么样获取这2个数组对象中children的总和呢，也就是length为8...

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

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3.2k views

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Vue+TypeScript时，undefined和null有啥区别

这种情况下，tip就能有值 hierarchy: Hierarchy | null = null; get tip() { return this.hierarchy ? `层级分类定义：${this.hierarchy.name}[${ ... open() { this.hierarchy = {code: '11', name: '111'} }...

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

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4.0k views

1 answer

golang 语法问题，困扰一个小时了，呜呜呜

处理一个二维数组，在二维数组每个元素中加入一个数字7，并再append 到原来数组, 输出的结果不对呀？ [9 0 3 5] 元素变成了 [9 0 3 7] 看输出截图只看我备注下面 ... = range res { res = append(res, append(v, 7)) } fmt.Println(res) return res } 输出：...

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

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4.1k views

1 answer

mariadb 意外crash ，自动重启，什么原因？

/lib64/libpthread.so.0(+0x7dd5)[0x7fce09bdbdd5] /lib64/libc.so.6(clone+0x6d)[0x7fce08199ead] Trying to get some variables. Some ... is invalid, but we will try to print it anyway....

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

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4.4k views

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nuxt.js - Nuxt - images load slowly and shifts the whole layout

I have problem with my Nuxt simple website. The images on page load doesn't load fast enough. It makes all the layout ... like half of the page size and later lazy load the rest....

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

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4.1k views

1 answer

oracle中并没有TB_IM_MESSAGEINFO表，可是sql查询TB_IM_MESSAGEINFO为什么可以查的出信息？

只有TB_IM_MESSAGEINFOA与TB_IM_MESSAGEINFOB，并且TB_IM_MESSAGEINFO还不是视图为什么执行sql查出的信息还是TB_IM_MESSAGEINFOA的信息...

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

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4.1k views

1 answer

vue同时设置组件和和div显示或隐藏时Ecarts会清空

需求时点击一个菜单要显示菜单的描述，同时在显示子菜单子菜单为组件，描述为div ` <ceshi v-if="ceshishow"></ceshi>  <div ... = false;或者this.waterelectricmenu = false;时，图表都不会清空，只有同时设置这两个的时候才会出现...

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

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3.9k views

1 answer

mongo array字段维护有限多少个

文档模型为 { "_id" : ObjectId("5fda6ae8bf760f494532a9fa"), "pairs": [ { "value": "ip", "time": ISODate("2020-12-17T04:15:33.000+08:00") ... pair中value需要唯一，怎么从数据库角度比较优雅的维护长度限定为最多100个pair...

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

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4.1k views

1 answer

ant design 的 DirectoryTree 组件如何修改单击目录不再展开？只需要点击三角符号才打开。

在ant design的官方文档上没找到，可能是我比较菜，希望有了解的朋友可以解答一下，谢谢。附上官方文档地址 https://ant.design/components......

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

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3.8k views

1 answer

c - Is assignment x=1; always an undefined behaviour according to C17?

I'm looking at the final draft of C17, N2176. Here, I'm concerned with what kind of expression with side ... part of the standard that makes this statement behaviour not undefined?...

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

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4.3k views

1 answer

想问一下，自己前端，刚入职公司半个月，本来公司还有人带，可是那个人就要离职走了，

自己平时项目添加功能都没问题，就是做的比较慢，想问一下前辈们，怎么能尽快熟悉公司项目，并且怎么才能提高自己呢？因为公司只有我这一个前端，公司平常主要做react,react-native...

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

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(HTML+CSS) There is a Dot before my Instagram Logo

Im making my own Website and i inserted a picture of the Instagram Logo as a link to get to my Instagram, but on the Live ... ="InstaLogo" height="50px" width="50px"></a> </div>...

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

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