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想让router-link 在跳转之前改变一下颜色 <router-link tag="li" class="bar" to="/orderList"> <span>我的订单</span> <span class="icon-keyboard_arrow_right tr">< ... 跳到下一个用户了看不到变颜色的瞬间这种情况,必须自己用js脚本跳转吗...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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关于java的多线程的成员变量是否线程安全的疑问？

对于下面的程序： public class MyThread extends Thread{ private Object obj; ...... } 请问，这个MyThread里面的成员变量，是不是线程安全的？因为，MyThread继承了Thread，其使用方式为：new ... 各个成员变量就是这个对象自己拥有的，所以，是安全的我这样理解有问题吗？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php全文搜索如何做开发成本最低？

php全文搜索如何做开发成本最低？目前中文粉彩效率太低，大家有其他方案吗？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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IOS的WeexSDK中不包含内建模块吗？

我当前是通过依赖WeexSDK 0.10.0版本，而非下载weex源码来构建app 但是在WeexSDK.framework中仅看到一部分.h文件，内建component以及内建module基本都不在其中？这是表示内建component和内建module仅仅是在weex层面开放，不能基于他们进行扩展吗？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Return boolean from cv2.inRange() if color is present in mask

I am making a mask using cv2.inRange(), which accepts an image, a lower bound, and an upper bound. The mask is ... hsv color between the hsv color range THEN print('color present')...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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CSS画五角星画的不正

<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>2-3</title> <style type="text/css"> *{ margin: 0;padding: 0; } . ... </div> </body> </html> 各位大神指点下，这个五角星为何不正 ...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript textarea 中如何实现输入tab键

实现areatext输入tab键（替换成4个空白字符）; 我的方法是检测输入的字符编码，如果==9的话就替换成，但是没有效果，不知道问题是出在哪 ... .addHandler(textbox, "keypress", function () { EventUtil.inputTab(EventUtil.getEvent()); });...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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using the t() from react-i18next outside of a component

I am using i18next and react-i18next in a react native application, more specifically with input validation. I am trying to ... here /> </I18nextProvider> ); } export default App;...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Transposing group of data in pandas dataframe

I have a large dataframe like this: |type| qt | vol| |----|---- | -- | | A | 1 | 10 | | A | 2 | 12 | | A | 1 | 12 | | B | 3 ... | 1 | 12 | B | 4 | 20 | C | 4 | 20 | | C | 4 | 20 |...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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yarn 保错

error An unexpected error occurred: "ENOENT: no such file or directory, open '/usr/local/lib/node_modules/yarn/node_modules ... /en/docs/c... for documentation about this command....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - Microsoft Sql Missing System Object for Microsoft Dynamic NAV classics

I'm getting and error when we want to connect Navision to SQL that says the SystemObject for Microsoft Dynamic is missing:...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - die(json_encode)) redirects to a page displaying json data

When form submission finishes, the page DISPLAYS the raw json data instead of logging it to the console. The php and ... ><!DOCTYPE html> Why do these two pages behave differently?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Returning a cookie or token with LDAP authentication in Spring security

All: I have a basic program for Ldap authentication which returns a "Principal User " package com.bpm.cbl.premium ... security(spring boot) Can someone pls provide some inputs pls...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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web scraping - Result RestClient call in NET Framework vs NET Core

I am trying to scrape a website. In the first step, I try to import the curl bash command and run it in postman. ... can I run the same code in a NET Framework program? Thanks....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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voip - Disabling SIP ALG in Tenda

How can I disable SIP ALG in my Tenda Router? because I am unable to listen calls on my voip phone. Where to go in setting for disabling it?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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search - Hugo ace-documentation lunr cannot find index.json when baseurl="/"

I am testing hugo's ace-documentation theme. Search function works when running hugo server (localhost:1313) but ... theme-learn/issues/156 have similar problem but no solution....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter displaying different types of images in child

I am doing something funky. The user is allowed to choose images from his phone's gallery or take a picture with his ... the initstate??? Which is strange to me... Thoughts?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue滑动切换组件怎么实现？

就是像app那样左右滑动切换模块，还有就是切换的过程中路由该怎么办？实在没什么思路...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wordpress - Apache Calc tips/tricks (settings) - how do I change DEFAULT "Save As" option schema to .csv/ UTF-8?

I use Apache exclusively for managing a Wordpress application using CSV datafeeds. The Wordpress app requires a file ... configure Apache OpenOffice Calc to to use this schema??...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Ruby on Rails - Stripe::CardError not catching blocked payments

I am working on a subscription based website with content behind a paywall wired up with Stripe. If the charge is declined ... in Stripe's API about the best way to handle this....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Pandas create a frame whose entries are the value of a function applied to the respective entries of other DataFrames

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Vue componet compile出错求解答

...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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value===""和value===null的区别是什么？

在写表单验证的时候看到很多人都是写value===""||value===null 不明白为什么要加上两个条件？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Conditional Inner Join error: "Can only compare identically-labeled Series objects"?

I am trying to do a simple inner join between two DataFrames. My first DataFrame is product data, which is a subset of ... tried many things and have been having a lot of trouble....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - Question regarding assembly code error while cross compiling

I am trying to cross compile a FreeRTOS application for the an ARM Cortex A8 (beaglebone black) and i am getting errors ... stick with it. Any help will be appreciated, thank you....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Unable to insert data in CodeIgniter 4

I am trying out CodeIgniter 4 and I have a problem inserting data. In my model I only defined the table name, no ... happens during the insert method call. How can I debug this ?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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database - Mongodb search in Document and subDocument through single query

I have a document with an array sub-document I need to search on document and sub-document through a single query I need ... is result findOne({name:'David', "list.score": 100})...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I scale (x-axes) and shift data within array in Python?

I have an array of data that represents some signal f(x). If there is a way to perform operations which ... that resampling functions are the ones that will solve rescalling issue....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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