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280 views

1 answer

python - x-axis ticks not appearing in matplotlib graph?

I have a dataframe with a column 'Date' and a column 'Close Price' for the S&P500 from 2010 to 2017. ... handles, labels = ax.get_legend_handles_labels() ax.legend(handles, labels)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

1 answer

java - Selling Partner API Amazon 400 bad request

I am trying to make an API call to Amazon's selling partner API documented here - SP-API . I make a call ... from the community. Wondering if anyone has been in similar shoes ?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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235 views

1 answer

r - Filter text/tweet column with keywords

I downloaded a timeline and have now a dataframe with 3200 observations of 1 variable (tweets). I want to filter my ... tweet matching my keyword but I know that there are more....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

1 answer

random - Computer guessing number python

I'm very new to programming and am starting off with python. I was tasked to create a random number guessing game. The idea ... str(guessNum3)) input() print("I got it!") input()...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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285 views

1 answer

node.js - Secure messaging system with chat history

I would like to create a messaging app that will be available both on website and mobile ie users can access there ... am using NodeJS, MongoDB, React, React Native and Socket.io...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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238 views

1 answer

java - Netty StreamCorruptedException After Keyexchange

I am trying to build an encrypted Netty connection using AES. RSA is helping me to transmit the AES key and ... : " + Base64.getEncoder().encodeToString(encryptCipher.getIV()));...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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622 views

1 answer

python - Create a new Column in pandas dataframe based on the filetered values in the row of other columns

I have a dataframe which has the following columns: Date Zip Price 0 2019-01-01 90102 58.02 1 2019-01-01 90102 81.55 2 2019- ... 3 2019-01-01 90102 93.23 4 2019-01-01 90103 13.68...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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333 views

1 answer

mysql - Why in database it is null?

I create new command in laravel: public function handle() { $serversList = [ 'cubegame.pl', 'feerko.pl', 'skyup.pl ... and also rest variables) return string or int... Please help....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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402 views

1 answer

google sheets - Transform an array with offset and arrayformula

I'm getting values from a google form, on one row, with an alternance of two types of ... docs.google.com/spreadsheets/d/1nyN-V0ZjBsRU7-7I97lnLUQCsLpO8f27UlXtgoLa1j8?usp=sharing...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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195 views

1 answer

javascript - span and strong tags are not working in jsdom

I am new to jsdom and I just want to convert html tags to json using draft js in node services. I got jsdom for ... ('jquery')(window); I need to convert html data to json....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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556 views

1 answer

nodejs用http模块写的简单程序，服务器端获取客户端发送名字发生的问题，为何此处代码没有运行到，求解答？

代码运行后，第一次客户端上有显示your name: ，第一次之后再输其它名字时都没有显示your name: ，但是服务器端可以正常显示从客户端得到的名字以下是server.js代码 var qs = ... 33[39m'); process.stdout.write(' your name: '); }); 为什么这段代码没有运行到呢？...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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170 views

1 answer

python 3.x - When execute code below I receive the message error str concatenate

Hy guys! I started learn programming. And when execute code below I receive the message error str concatenate. import random ... : can only concatenate str (not "int") to str...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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376 views

1 answer

又一个关于react的问题~~~

谢了一个回到顶部的react组件，代码如下： import React, { Component } from 'react'; import goTopStyle from './goTop.less'; class GoTop extends Component { ... 件并没有解绑请问为什么会没被解绑呢？问题出在哪呢？想呢很久...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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164 views

1 answer

nodeJS 解析音频文件

我在server文件内写了一个调用music方法，可是每当启用sever就会跑出音频下载询问，在手机上更是完全无声... 菜鸟求问，如何正确用node解析音频呢? var re2=/music/; if( ... { if (err) throw(err); res.write(data, 'binary'); res.end(); }) }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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990 views

1 answer

spring - Using a request header value in @PreAuthorize

Is it possible to use a request header value in @PreAuthorize? In my app, all requests have a custom header ... for that manually in each controller method. Thank you, Matt...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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185 views

1 answer

javascript - Way to proxy/override ServiceWorkerRegistration function

I'm trying to proxy the showNotification method of a ServiceWorkerRegistration object. Here's how I'm doing it ... one would go about reassigning the registered service worker....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

1 answer

如何在有自增id的情况下，让其他某些字段能不重复插入

create table user_info (id int(20) AUTO_INCREMENT ,name varchar(20),cardNo varchar(128),phoneNumber varchar(15),building varchar(5),unit ... 候能自动判断name，phoneNumber是否已经有相同的，能这样设计表吗...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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328 views

1 answer

this.setData()

WXML <view class="search-form"> <view class="search-form__box"> <icon type="search" class="search-form__box-icon" size="20"></icon> < ... of undefined 以前没问题现在开发者工具更新后一直报错！！／:>...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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820 views

1 answer

logstash - Sending filebeat outputs via http

I have a filebeat instance reading a log file, and there is a remote http server that needs to receive the log ... the middle, and make the filebeat to make api calls directly?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

278 views

1 answer

javascript - Why I am getting this ActionController::RoutingError (No route matches [GET] "/users/assets/application.js")

application.js not serving on production heroku I spent days trying to solve this issue everything works fine ... TaggedLogging.new(SyslogLogger.new) # Use a different cache...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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274 views

1 answer

怎么样才能让chrome的<li>列表符号居中

如图所示，<li>的内容文字居中了，但是<li>的列表符号过不来，在firefox下是正常的，chrome怎么这么奇葩，chrome版本是56，怎么才能显示正常，怎么样hack css才能解决...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

1 answer

【新手求教】express-session 保存的问题

app.use(session({ resave: true, saveUninitialized: true, secret: 'yunBaby', cookie: { maxAge: 1000 * 60 * 30 } })); ... ... 次刷新时，get到的session的name都是 undefined . 而且输出的sessionID是一样的 ...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

1 answer

java - How to mock objects initialized in constructor using an external method call?

final HttpClient httpClient; final HttpUtils httpUtils; @Autowired public SampleConstructor(HttpUtils httpUtils) { this.httpClient ... can inject the mocked object for HttpClient?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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755 views

1 answer

ios - UIDatePicker not displayed as inputView of UITextView for mac catalyst

UIDatePicker working fine with all iOS devices but the same code does not work for mac app (mac catalyst). I ... be the solution to display UIDatePicker in mac catalyst? Thanks!...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

130 views

1 answer

javascript - Display different variables on a modal using PHP

I'm learning PHP and making a bidding website as a learning project. I've managed to get the properties from the database and ... class=well>sidebar</div> </div> </div>"; ?>...

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

0 votes

259 views

1 answer

javascript - I can't create react apps! canvas related issues

My laptop is M1 macbook pro. The node version is 15.4.1. The npm version is 7.0.15. After I used this cmd npx create- ... canvas". But I have no idea how to solve it. Thanks a lot!...

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

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391 views

1 answer

Autodesk Forge Viewer里如何爆炸视图状态下，能否对构件加一些标记，并对标记加上超链接

Forge Viewer (网页模型浏览和应用拓展）在爆炸视图下，能否对构件进行一些标记，在标记里有超链接，导向到我的数据库信息？...

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

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1.7k views

1 answer

js 异步回调

function coordinate(result,Point,SpatialReference,GeometryService,ProjectParameters){ var data=[]; for(var i=0;i<result.length;i++){ var geometryService ... 张图是输出结果，但那个空的数组点开是由内容的 ...

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

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