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382 views

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element ui 表单验证问题

elementui 表单验证如何让他从上往下一个一个验证，（点击立即立即创建，先验证活动名称如果没输入，只有活动名称这显示提示信息其他不显示）...

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

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shell - How to run Python command for all folders in a directory

I am new to Linux and I want to execute my Python script on data that is stored in a set of folders. The command ... write the results of my script to the command line/into a file...

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

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python - How can I append this Google API translation back into my dataframe?

I'm trying to translate (from auto detect to english) this pandas Dataframe. I can't just plug in the dataframe into translator. ... 0":"Rsst, 11211, Brooklyn","1":"Ttnft, u062......

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

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700 views

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react 怎么阻止点击子元素触发父元素事件

怎么点击Input的onchage事件时候只触发当前事件不触发父元素上的onclick事件阻止冒泡都不行 //点击选中按钮 checkThis=(item,e)=>{ console. ... "click" console.log(eventType) item.checked=!item.checked // console.log(item) }...

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

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SQL Server stored procedure query multiple tables

I am querying a SQL Server database using a stored procedure. My database tables include: Customers SalesOrders - Linked ... will query multiple tables the way I have described....

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

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web scraping - XML Imported Content is Empty Stock Data

hi im trying to scrape stock market data using google sheets i am trying to get data the PRICE data from here http:// ... by using google chromes right click -> copy -> copy xpath...

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

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301 views

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element select下拉框异常

在线demo： https://codepen.io/Swarz/pen/RwaPaOO github问题：https://github.com/ElemeFE/element/issues/20025 select①输入无法匹配的值，比如 sdasd ,等待无匹配数据出 ... 选择一个值后重复1 2 动作 select②下拉框最下面多了无匹配数据 ...

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

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Plugin "Fabric for Android Studio" is incompatible

Since updating to Android Studio 4.1 I constantly get this error message on startup: Plugin Error: Plugin "Fabric for ... > Plugins nor is it not contained in the expected path....

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

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javascript - Calculator delete button removes the first instance of similar input

I'm learning JavaScript(jQuery), so I'm working on a scientific calculator. The delete button works fine when I have ... " crossorigin="anonymous"></script> </body> </html>...

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

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TypeScript 函数问题

请问,如下方法的作用是什么? 这是用rxjs处理表单的一段代码. private propagateChange = (_: any) => {}; ngOnInit() { const idType$ = ... ; } public registerOnChange(fn: any) { this.propagateChange = fn; //调用 }...

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

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Vue+Element+Admin的前端静态展示页面怎么弄成动态显示？？？？

如上图，上面的数据前端都是静态显示，必须得刷新页面才能显示出最新的数据，如何才能弄成让日期时间和数据一直动态显示？？？？？？？### 问题描述...

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

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mysql - Control navigation links in php

So, I've got few links on my navigation and because I require the navigation from header.php at every pages I would like ... so maybe I need to make an array? Thanks everyone! :)...

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

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请问怎么将这个数组转换我想要的结构？

let a = [{ label: "英国2号处理中心", prop: "center", }, { label: "美国1号处理中心", prop: "center", }, { label: "法国处理中心", prop: "center", } ... ; }); 或者像这条数据，arr数组是动态不确定有几层的，如何动态的循环生成同样的narr数组呢？...

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

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Read and write Excel 2016 (or Office365) sheet including Power Pivot model with Python

Does someone know how to read and write Excel 2016 workbooks containing PowerPivot model with Python? Currently I can do ... (from the zip file) containing item.data file Antti...

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

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461 views

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draft.js 编辑器中如何只允许用户删除一个词组，禁止删除单个字？

比如“我爱北京” 后端分好词了，用户只能删除“北京”这个词，不能删除“京"这个字...

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

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414 views

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flutter - How to calculate every other weeks with DateTime?

I have chat app. I want allow user message other user only every other week. For example: Week 1 (allowed Week 2 ( ... && DateTime.now().isBefore(Y) How I can tell DateTime this?...

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

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salesforce - SFDC email template send using rest api

we have create sample email template in SalesForce Classic Email Templates section. I want to know the Rest API URL for ... know the Rest API example in java. Thanks in advance....

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

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299 views

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typescript 如何使用combineReducers?

代码如下，想做多个reducer的合并，但是下面的写法会直接报错有做过的大佬吗？应该怎么写， ` import {createStore,combineReducers} ... && (window as any).__REDUX_DEVTOOLS_EXTENSION__() ); export default store; `...

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

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python - How to check page was loaded in __init__?

I have base class init class BasePage: def __init__(self, context): self.driver = context.driver and later when create any ... on the white screen even when I put time.sleep 30sec...

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

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446 views

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前端需要学语义网相关的东西吗？

RDF,OWL,SPARQL 这些。和前端关系大不大？...

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

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179 views

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Django demand login in url

I have a Django page with content that changes depending on whether the user is authenticated or not (more content when ... is already logged in. Any way to achieve this easily?...

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

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c++ - Member definition of partially specialized classes

I'm trying to define member functions of partially specialized class templates, but different compilers have wildly different ... ? How do I get this working on MSVC?...

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

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windows下startup.cmd启动nacos失败

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' ... .annotation.InjectionMetadata.inject(InjectionMetadata.java:90) at...

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

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198 views

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Gtk.Entry autocomplete?

I am trying to do something like this picture, with a GTK Entry: Basically, what I want is that, if the user ... "technique". Can anyone point me in the right direction here?...

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

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417 views

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javascript - I18n-js - is there a way to check if a translation exists or not?

Is there a way to check if a translation exists or not with the library I18n-js?...

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

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127 views

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加载大图如何优化

当页面加载大图，只显示上行，下行变为灰色这种情况该如何处理？我的思路是拿到图片的size，大概为2M，加载到20%的时候，可不可以通过开发控件拿到2m的20% 也就是400K，400K和2m图大小不一样，自己写个reloading方法 ... 来，那就有50的机会去重新加载，如果50次都加载不出来，img onerror在更换图片，大佬们怎么用代码实现...

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

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某建筑消防逃生路线

结合BIM模型，在模型中显示应急逃生预案的线路，并实现路线运动，请问这个有实施方向，或者示例吗？...

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

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这个代码为什么要这么写？

let canvas = <HTMLCanvasElement>document.getElementById("canvas"); 在看ts代码时候看到很多这样的，前面的尖括号表示什么意思...

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

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