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1.props验证总是报错 2.相关代码： <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src=" ... 'hello world', num: 100 } }) </script> </html> 运行结果：...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

1 answer

mount - Mounting cifs share using kerberos fails with 'Operation not supported'

I'm trying to mount a network share using cifs and kerberos on a CentOS 8 distro. I am able to mount the ... the mount issue I mentioned above. Any help is appreciated. Thanks!...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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279 views

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gitbook serve命令提示找不到wensite.css和website.js

错误指示的目录下的文件是空的：求大神解释一下...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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445 views

1 answer

老铁们，在列表中如何对时间进行排序～

fx = [{'次数': 2, '时间': '10:45:00'}, {'次数': 4, '时间': '14:58:00'}, {'次数': 5, '时间': '09:59:00'}, {'次数': 28, '时间': '08:13:00 ... 中，进行时间上的排列，比如最后那个是4点56的，排在第一位，9点59的那个排在最后面老铁们，帮帮忙啊～～谢谢...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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227 views

1 answer

Build number or most recent commit # with AWS CodePipeline node.js

I'd like to make the CodePipeline Build# (CODEBUILD_BUILD_NUMBER) available to my node code that is being deployed. Currently ... available to my node.js code, that would be ok....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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298 views

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想给Wordpress换个VPS，同等价格选2 CPU 1G MEM，还是1 CPU 2G MEM？

想给Wordpress换个VPS，有两个靠谱的服务商，在经济承受能力范围内有一个价格相同但是配置不同的套餐 2 CPU Core + 1 G MEM 1 CPU Core + 2 G MEM 选哪个比较适合Wordpress？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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429 views

1 answer

functional programming - How to chain Swift Futures

I have defined the following functions: func createAccessControl() -> Future<SecAccessControl, Error> func evaluatePolicy( ... futures together, similar to JavaScript's "then"?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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390 views

1 answer

bash - Emacs on Windows opens emtpy buffer when started from script

Background I'm rewriting my newNote script and I'm using the runemacs.exe Windows instead of calling the binary directly like I ... bash, version 4.4.23(1)-release (x86_64-pc-msys)...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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230 views

1 answer

fiddler抓不到请求

使用fiddler抓vertx框架发送的请求却抓不到但是使用new URL形式就可以这是为什么呢 System.setProperty("http.proxyHost", "localhost"); ... e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

1 answer

vue vdom源码阅读：updateChildren方法为何要判断oldStartVnode和newEndVnode是否相同?

在阅读vue vdom实现中，patch模块下，有一个updateChildren方法，用于比较当前elm下的旧子元素(数组)和新子元素(数组)，实现最大程度地复用旧dom．算法实现 ... (parentElm, oldCh, oldStartIdx, oldEndIdx) } } https://github.com/vuejs/vue/......

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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223 views

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python - Multiple-select form and query django

One of my fields in my model has a choice field: STATUS = Choices( ('first', _('car')), ('second', _('motorcycle ... it, so it would display items, based on more than one choice?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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311 views

1 answer

在IE7使用jquery的fadeOut 和fadeIn ,背景图片出现边黑边？？

在IE7使用jquery的fadeOut 和fadeIn ,背景图片出现边黑边有没有人出现过这样的情况？？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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527 views

1 answer

ruby on rails - Devise sessions expiring too fast (hours, not days)

I'm moving this from an issue on the Devise repo as I don't know that it's actually a bug yet. ... cookie store. Regardless, I'm still unconvinced timeoutable is working properly....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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138 views

1 answer

python 3.x - Overriding package libraries in Google App Engine project

I am writing a Google App Engine Django REST Framework project that uses external libraries through requirements.txt. In one ... requirements.txt. Any idea how to make this work?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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226 views

1 answer

python - Segfault in tk if plotting from an audio callback

This minimum reproducible example: #!/usr/bin/env python3 from contextlib import contextmanager import pyaudio from matplotlib ... data from the callback to a rendering thread?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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313 views

1 answer

Python读取excel时出错：unsupported format or corrupt file？

用excel打开是正常的，就是在Python中读取不了。试过read_excel和xlrd.open_workbook...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

1 answer

r - How do I create new rows based on cell value?

I have a dataframe df where: Days Treatment A Treatment B Treatment C 0 5 1 1 1 0 2 3 2 1 1 0 For example, there were ... at the moment, but I can place it into R if that's easier....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

1 answer

ggplot2 - How do I create a ggplot in R from a non-linear model using the mgcv package?

I have a non-linear survival model which I have coded using the mgcv package. I can produce a regular plot, but ... ggplot instead of plot command from mgcv #UNSURE HOW DO TO THIS...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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361 views

1 answer

python - Why I have this Error? "System Error: new style getargs format but argument is not a tuple"

import cv2 import glob import numpy as np objp = np.zeros((9*6, 3), np.float32) objp[:, :2] = np.mgrid ... , None) SystemError: new style getargs format but argument is not a tuple...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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437 views

1 answer

How do i convert a date in varchar (1-Jan-2020) to date type in DB2 sql?

I have a column with dates as below in my db2 table. 4-Jan-2020 7-Sep-2020 7-Dec-2020 I want to convert them to ... -09-07 2020-12-07 respectively. How do I achieve this? Thanks....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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601 views

1 answer

3个dao的数据根据请求参数选择一个映射到一个url上，怎么写比较好?

3个dao的数据要映射到一个url上，用请求参数指出使用哪一个dao。这个怎么选择？用@RequestParam在控制器里面做选择，还是在service里面做选择？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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172 views

1 answer

$无法对$进行转义？

adm@localhost:~$ adm@localhost:~$ adm@localhost:~$ adm@localhost:~$ pwd 上面这个文档需要删除以pwd结尾的行 :%g/pwd$/d 成功了。需要删除以$结尾的行 :g/$$/d 为何对$转义，不起作用了？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

webrtc 发起方可以收到对方视频流，接收方收不到发起方的视频流

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <!doctype html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> < ... }); </script> </html> 接收方的收到信息发起方收到的信息...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

view - remove duplicate for only title laravel

In laravel 5.7 in my web controller public function index(Request $request){ $plan = Plan::All(); return view ... description here how can i remove duplicate title? in laravel...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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570 views

1 answer

localstroage和cookie在手机微信端，能存进去却无法在其他页面调用

请教一下，有什么情况会导致localstroage和cookie在手机微信端，能存进去却无法在其他页面调用？开发场景是，微信公众号开发，前端使用angularJS,后台使用PHP，自己用的是新浪云SAE服务器，接口仍然是调用的公司服务器，感觉这应该 ... 然是X5 现在有一个方向，就是跨域导致的，正在研究中，希望有办法的朋友能提点一下，不甚感激！...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

1 answer

javascript - get value of #text from object react

Im using Last.fm API for get artist info. I got JSON object format just like this: object format how can I access the " ... .published}</div> </div> ) } } export default Profile;...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

1 answer

reactjs - my images array is empty when I pass student to actions in redux but it is working in postman

I am trying to add image files to images array using React but I am getting an empty images array. My backend is ... but when I pass student to actions, the images array is empty...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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394 views

1 answer

Calculate the sum and multiply with the quantity to get the total in django

I have the code which calculates the sum just fine, now my question is it possible to multiple each price by ... request.user).aggregate(Sum('item__price')).get('item__price__sum')...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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