投稿時間:2021-05-14 23:33:49 RSSフィード2021-05-14 23:00 分まとめ(40件)

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IT	気になる、記になる…	ケンコー・トキナー、iPhone・iPad向けのモバイルワンセグチューナー｢KR-012AP｣を5月21日に発売へ	https://taisy0.com/2021/05/14/140441.html	light	2021-05-14 13:19:58
IT	気になる、記になる…	Apple、ローマの有名なショッピングストリートに新しい直営店｢Apple Via del Corso｣をまもなくオープンへ	https://taisy0.com/2021/05/14/140437.html	apple	2021-05-14 13:02:23
python	Pythonタグが付けられた新着投稿 - Qiita	素敵なデータ構造：ヒープ by Python	https://qiita.com/zuid/items/5eb3369940f3da708c54	素敵なデータ構造ヒープbyPythonヒープとは、・二分木を用いるデータ構造で、・木の深さh以下の部分については完全二分木を形成し、・各頂点と親頂点との間に親頂点≧子頂点の関係が成立し、・値xの検索には適さないですが、最大値の取得が得意なようです。	2021-05-14 22:50:27
python	Pythonタグが付けられた新着投稿 - Qiita	pythonでインスタンス情報を調べるためのtips	https://qiita.com/htj/items/c8f90430347ef8eb3389	引数がある場合、そのオブジェクトの有効な属性のリストを返そうと試みます。	2021-05-14 22:16:49
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	pyによるプログラミングのif分でエラーが出てしまう	https://teratail.com/questions/338353?rss=all	pyによるプログラミングのif分でエラーが出てしまうfornbspinbspinnbsprangeifnbspinbspnbspnbspnbspprintstrinbspnbspaposは奇数aposelseprintstrinbspnbspaposは偶数aposこちらの文をPythonで実行させたいのですがifnbspinbspnbspnbspnbspIndentationErrornbspexpectednbspannbspindentednbspblock上記のようなエラーが出てしまいます。	2021-05-14 22:55:38
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	WordPressで作成したpermalinkが正常に動作しない	https://teratail.com/questions/338352?rss=all	WordPressで作成したpermalinkが正常に動作しないご覧いただきありがとうございます。	2021-05-14 22:50:10
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	kivy レイアウト　Python	https://teratail.com/questions/338351?rss=all	kivyレイアウトPythonpythonで作成した計算式のコードをkivyを用いてiOSのアプリにしたいのですがlayoutnbspの仕方で手が止まります。	2021-05-14 22:48:24
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	PythonアプリにおけるANSIエスケープの解釈	https://teratail.com/questions/338350?rss=all	SSH接続し、コマンドをサーバに投げて出力をPythonで受け取ることまでは実現しましたが、ANSIエスケープコードを処理した状態で変数もしくはファイルにリダイレクトする方法が分かりません。	2021-05-14 22:39:29
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	AWS SSH 接続できない。	https://teratail.com/questions/338349?rss=all	AWSSSH接続できない。	2021-05-14 22:30:28
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	画像のマルチラベル分類モデルを学習したいのですが、メモリ不足でうまくいきません	https://teratail.com/questions/338348?rss=all	画像のマルチラベル分類モデルを学習したいのですが、メモリ不足でうまくいきません前提・実現したいこと機械学習を勉強して数ヶ月経った学生です。	2021-05-14 22:29:21
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Rspecのコードついて	https://teratail.com/questions/338347?rss=all		2021-05-14 22:29:05
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	PUN2をAndroid上でデバッグする際に一つの端末で二人分アクセスしたい	https://teratail.com/questions/338346?rss=all	PUNをAndroid上でデバッグする際に一つの端末で二人分アクセスしたいPUNPhotonnbspUnitynbspNetworkingnbspを使ってAndroidアプリ上でできるオンライン対戦を作りたいと思っています。	2021-05-14 22:02:59
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Rails バリデーションの日本語化、レイアウト痔に起きた現象	https://qiita.com/ttf1998seiya/items/9f347b96eb9ab21c5cc0	それでは初投稿、書いていきます今回の現象現象としては、Railsに入れたDeviseに、バリデーションを追加したのち、レイアウトと日本語を整えたいと思い色々いじった後、Signup画面で何故かルーティングエラーが発生しました。	2021-05-14 22:42:51
Ruby	Rubyタグが付けられた新着投稿 - Qiita	ストロングパラメーターで指定した情報だけ保存	https://qiita.com/N396184501/items/a48b40c96b912405edb5	まずはrequireメソッドparamsrequireモデル名必要とする情報を指定します。	2021-05-14 22:41:35
Ruby	Rubyタグが付けられた新着投稿 - Qiita	system_specでjqueryをテストする	https://qiita.com/Ub_Iwerks/items/7a74c67fb97636d21b32	systemspecでjqueryをテストする導入前回の記事で、racktest→seluniumの以降が成功し、無事jqueryなどのDOM操作をrspecでテストできるようになった、わけではありませんでした。	2021-05-14 22:28:43
AWS	AWSタグが付けられた新着投稿 - Qiita	EC2上でSpring-Bootアプリを起動する	https://qiita.com/NoOne/items/76be0d03560f0b77e91a	ECインスタンス生成ECに接続するために必要な秘密鍵取得ECにSSH接続ECにjarファイルをsftp送信するEC上にjavaインストールjar実行それでは順に説明いたします。	2021-05-14 22:56:41
Docker	dockerタグが付けられた新着投稿 - Qiita	dockerfileにてbuild時刻を利用する方法（メモ）	https://qiita.com/yuji_sakurai/items/f88e8055eeecd7813d8f	dockerfileにてbuild時刻を利用する方法メモ背景AWSECSでdockerimageを動かしていた際に、いつbuildしたイメージが動いているかを知りたかったが、うまくbuild時間をdocker内に渡す方法が見つからなかったので力技をした際のやり方メモ一般的なやり方dockerbuild時にargを渡すことができるので、その際に入れ込むやり方が一般的な模様dockerbuildbuildargFOLDERdateuYmdただECSを使う場合はECRダッシュボード上の「プッシュコマンドの表示」にある方法から変えたくなかったので、なるべくdockerfileの中だけで完結する方法を検討していました。	2021-05-14 22:41:02
Docker	dockerタグが付けられた新着投稿 - Qiita	system_specでjqueryをテストする	https://qiita.com/Ub_Iwerks/items/7a74c67fb97636d21b32	systemspecでjqueryをテストする導入前回の記事で、racktest→seluniumの以降が成功し、無事jqueryなどのDOM操作をrspecでテストできるようになった、わけではありませんでした。	2021-05-14 22:28:43
golang	Goタグが付けられた新着投稿 - Qiita	【Go】本日日付のJST00:00:00をUTC時刻で取得する	https://qiita.com/someone7140/items/4fa247ca108000fb5d2b	【Go】本日日付のJSTをUTC時刻で取得する概要日付のデータに関してデータベース上では、UTCで格納しているケースはけっこうあると思います。	2021-05-14 22:47:13
golang	Goタグが付けられた新着投稿 - Qiita	Mac初心者のGoインストール	https://qiita.com/KoyoTakenoshita/items/bd2af12c7b93167f3fea	Mac初心者のGoインストールGoを使ってみたいと思ったのだ。	2021-05-14 22:25:46
Ruby	Railsタグが付けられた新着投稿 - Qiita	Rails バリデーションの日本語化、レイアウト痔に起きた現象	https://qiita.com/ttf1998seiya/items/9f347b96eb9ab21c5cc0	それでは初投稿、書いていきます今回の現象現象としては、Railsに入れたDeviseに、バリデーションを追加したのち、レイアウトと日本語を整えたいと思い色々いじった後、Signup画面で何故かルーティングエラーが発生しました。	2021-05-14 22:42:51
Ruby	Railsタグが付けられた新着投稿 - Qiita	ストロングパラメーターで指定した情報だけ保存	https://qiita.com/N396184501/items/a48b40c96b912405edb5	まずはrequireメソッドparamsrequireモデル名必要とする情報を指定します。	2021-05-14 22:41:35
Ruby	Railsタグが付けられた新着投稿 - Qiita	system_specでjqueryをテストする	https://qiita.com/Ub_Iwerks/items/7a74c67fb97636d21b32	systemspecでjqueryをテストする導入前回の記事で、racktest→seluniumの以降が成功し、無事jqueryなどのDOM操作をrspecでテストできるようになった、わけではありませんでした。	2021-05-14 22:28:43
技術ブログ	Developers.IO	意外と近くにある脅威にドキっとする。「セキュリティショートショート」読後レポート	https://dev.classmethod.jp/articles/security-short-short-report/	注意事項	2021-05-14 13:31:28
海外TECH	DEV Community	Building a Budget Manager with Django and Fauna	https://dev.to/chukslord1/building-a-budget-manager-with-django-and-fauna-56o5	Building a Budget Manager with Django and FaunaWritten in connection with the Write with Fauna program This article will guide you to build a simple budget management application using the Django web framework and implement the database with Fauna This budget manager would allow users to calculate their expenditures keep track of their savings and get financial advice based on their budget reports PrerequisitesTo fully understand this tutorial you are required to have the following in place Python or newer Basic understanding of Fauna Basic understanding of Django A text editor With the above prerequisites out of the way we can now begin building our budget management application Introduction to FaunaIf this is the first time you hear about Fauna visit my previous article here for a brief introduction Creating The Budget Report DatabaseTo create a Fauna database you have to first sign up for an account After signing up you can create a new database by clicking on the CREATE DATABASE button on the dashboard After clicking on the button as shown in the image above you need to give your database a name then save it Creating The CollectionsYou need to create a collection in your database the Budget Report collection The Budget Report collection will store the documents for all the reports created on the application For the History days and TTL use the default values provided and save After saving your collection should be similar to the one in the image below However you don t have data stored in your collection yet Creating The IndexesYou will create two indexes for your collections report index and report previous index The report index index will allow you to scroll through data in the Budget Report collection It has one term which is the date field This term will enable you to match data with the username for easy querying The date field is unique The budget previous index also allows you to scroll through data in the Budget Report collection However this index allows matching with the report field to perform queries Below are what your indexes will look like after saving them Creating an API keyTo create an API key go to the security tab on the left side of your dashboard then click New Key to generate a key You will then be required to provide a database to connect to the key After providing the information required click the SAVE button You will be presented with your secret key as in the image above hidden here for privacy after saving your key Make sure to copy your secret key from the dashboard and save it somewhere you can easily retrieve it for later use Building the Django AppNow you will be learning how to implement the various functionalities of the budget management application Cloning the AppRun the code below in your command line to clone the repo containing the Django app on Github git clone  Importing the  Required Librariesfrom django shortcuts import render redirectfrom django contrib import messagesfrom django http import HttpResponseNotFoundfrom faunadb import query as qimport pytzfrom faunadb objects import Reffrom faunadb client import FaunaClientimport datetime Initializing Fauna ClientTo initialize the Fauna client copy the code below and replace secret key with the API key you created earlier client FaunaClient secret secret key The Budget Manager LogicThis application will allow the user to enter his monthly allowance then calculate his budget report This report will include the user s expenditure rate extra funds and a bit of financial advice from the system Implementing the Application Logicdef index request if request method POST income int request POST get income rent int request POST get rent food int request POST get food utilities int request POST get utilities insurance int request POST get insurance date request POST get date extra income rent food utilities insurance save income if extra gt if extra gt save advice Your expenditure rate is very good keep it up At this rate you going to be rich You have an extra str extra else advice Your expenditure rate is just fine You have str extra You should try to save atleast str save else advice Your expenditure rate is very poor At this rate you might go broke You have str extra You should try to save atleast str save try report date client query q get q match q index report index date messages add message request messages INFO Report Already Exists return redirect App index except book client query q create q collection Budget Report data monthly income income rent rent food food utilities utilities insurance insurance date date extra extra advice advice report True messages add message request messages INFO Report Created Successfully return redirect App index try check report client query q paginate q match q index report index datetime datetime today strftime Y m previous report client query q paginate q match q index report previous index True all reports previous reports for i in check report data all reports append q get q ref q collection Budget Report i id for j in previous report data if q get q ref q collection Budget Report j id in all reports pass else previous reports append q get q ref q collection Budget Report j id reports client query all reports previous reports client query previous reports context reports reports previous reports previous reports return render request index html context except return render request index html In the python code above we collected the user s monthly income and other required information in the POST request sent From this information we calculated the extra funds and the amount the user needs to save We then created an advice for the user based on the value of the save and extra variables To add a report to the Budget Report collection we first checked if any report exists in the database carrying the date provided by making a request to the Fauna client with the report index If the data does not exist you create a report and send a success message to the dashboard page Now we need to render the reports created on the dashboard for the user to see The user needs to see all the reports for both the current month and other months For the current month we made a query to the Fauna client using the report index to match all data for the current month then saved it in the all reports list to be queried and passed to the dashboard While for the other months we simply made a query to the Fauna client using the report previous index to match all active reports stored the data in the previous reports list then eliminated the reports for the current month Finally we queried the previous reports list then passed the data to be displayed on the dashboard After submitting the required information the budget report will be displayed to you as seen in the image below The App URLsHere we imported the required modules and defined our app s urls connected to our created views from django conf import settingsfrom django conf urls static import staticfrom django urls import path includefrom import viewsapp name App urlpatterns path views index name index ConclusionIn this article you learned how to build a budget management application with Fauna s serverless database and Django We saw how easy it is to integrate Fauna into a Python application and got the chance to explore some of its core features and functionalities The source code of our budget manager application is available on Github If you have any questions don t hesitate to contact me on Twitter LordChuks	2021-05-14 13:28:38
海外TECH	DEV Community	My go-to React libraries for 2021	https://dev.to/julienhery/my-go-to-react-libraries-for-2021-4k1	My go to React libraries for I ve been working on React apps for more than years now and I ve used tons of libraries to build various applications The last months have been very rich for the React ecosystem We ve seen many different tools slowly replacing old libraries that hundreds of developers used to build their apps for many years I started a new project for my client this year and had the opportunity to test out these new tools and choose my new stack for and beyond State ManagementI ve used Redux for many projects it is was a great solution to centralize the data of your application But some things just felt over complicated and developers have been complaining about this for a long time For example learning the Flux pattern can be quite difficult for some people Then someone tells you that you need to use a middleware to handle your side effects Great Let s use Redux Thunk But wait now someone tells you that there is a better solution Redux Saga Nice Even more complexity to handle But changed that and new challengers appeared You might have heard of Recoil Jotai Zustand or just React Context API But the one that made me drop Redux is For those who already know it you might say that it s not like Redux It doesn t do the same thing React Query is a data fetching library it makes fetching caching synchronizing and updating server state easy All the projects I worked on were using Redux to store data coming from the server That s also why middleware like Thunk or Saga appeared What if I tell you that there is a library to do that without bothering with actions action creators reducers etc… With React Query you ll be able to easily fetch the data from your server and cache it Later on you ll be able to invalidate the data and everything will be re fetched automatically and stored again The only part you need to worry about is how you fetch the data And of course it gives you the isLoading boolean and tons of other information you re tired of handling yourself import QueryClient QueryClientProvider useQuery from react query const queryClient new QueryClient export default function App return lt QueryClientProvider client queryClient gt lt FirstComponent gt lt SecondComponent gt lt QueryClientProvider gt function FirstComponent fetch some data const isLoading error data useQuery myData fetchData if isLoading return Loading if error return An error has occurred error message return lt div gt lt h gt data name lt h gt lt p gt data description lt p gt lt div gt function SecondComponent const queryClient useQueryClient const invalidateData gt invalidate data will trigger a refetch in FirstComponent queryClient invalidateQueries myData return lt div gt lt button onClick invalidateData gt Click me to refetch data lt button gt lt div gt If you still need to handle complex local state i e not coming from your server then I have something for you Zustand is a small and fast state management solution I m not a big fan of context based libraries like Redux It always felt like dark magic to me you don t really know how it works but it does the trick ‍ ️ I m not saying that context based state management is bad I m just saying that the whole Provider Consumer thing doesn t feel natural to me even if it s a React feature What I love about Zustand is that it s just objects You create a state from an object it can contain properties like strings numbers boolean or whatever just as you would do with Redux But you can also put functions to update your state or even fetch data if you want to handle it yourself try React Query please You won t be disappointed Zustand also gives you a hook that you can use in your components to access the data But the cool thing is you can also access it outside of a component As you may know hooks cannot be used if you re not in a component but Zustand gives you the ability to access your state object and every other thing you could do with the hook This can be very useful for testing you can just manage your state before rendering your component and you don t have to wrap everything with a context import create from zustand const useStore create set gt bears fetchBears async gt const response await fetch bears set bears await response json export default function App const bears useStore state gt state bears return lt h gt bears length bears around here lt h gt You can also use your store outside of components Getting non reactive fresh stateconst bears useStore getState bears Listening to selected changes in this case when bears changesconst unsub useStore subscribe console log state gt state bears Updating state will trigger listenersuseStore setState bears name zustand Unsubscribe listenersunsub Destroying the store removing all listeners useStore destroy I haven t tried other alternatives like Recoil or Jotai but Zustand is the one that felt the most easy and natural to me by reading its documentation and so far I m not disappointed UI ComponentsWhen you don t have strong styling directives to follow you ll probably end up using a component library to have components that already fit well together Most of the time they also provide you additional features and remove a lot of boilerplate code I ve started React with Reactstrap Bootstrap for React and then switched to Material UI I dropped Reactstrap because Bootstrap was not the cool thing anymore and Material was But all I felt using Material UI was frustration To me the components are not always intuitive or flexible enough and I lost too much time searching simple things in the documentation Material UI was not the right choice for me So I searched for an alternative and found Ant Design is a design system for enterprise level products It comes with all the components you need Every time I wonder “Can I do this with component I can do it The documentation is very good and contains a lot of examples You can feel by reading it that peoples have thought a long time about what features could be useful There s still some things I don t like about Ant Design Its style is written using LESS and I m more of a SASS user and it s supported by default by create react app If you want to customize Ant Design theme you need to use LESS or a tool to change LESS variables during your build To me it feels a little too much to just update color variables Another thing to note is that Ant Design is a design system It is meant to be opinionated It gives you a set of rules to follow when using components and doesn t make it very easy when you want to use components outside of these use cases Overall it is a pleasure to use compared to Material UI and I can do everything I need very easily without any frustration TestingI was introduced to testing React applications with Enzyme Back in the day it was probably the best solution But time has passed and a very strong alternative has appeared Testing Library has been around for quite some time now and has slowly replaced Enzyme everywhere This tool provides simple and complete testing utilities that encourage good testing practices Unlike Enzyme it is closer to how a user would interact with your application and gives you more confidence about the way you test your application The thing that shocked me the most was the readability of my tests You can tell exactly what it does by just looking at the code It may sound stupid but it wasn t always the case with Enzyme import React from react import render fireEvent from testing library react import testing library jest dom extend expect import MyComponent from MyComponent test display Hello dev to gt const getByText render lt MyComponent gt expect getByText Hello dev to toBeInTheDocument test display Clicked after clicking on button gt const getByText queryByText render lt MyComponent gt expect queryByText Clicked not toBeInTheDocument fireEvent click screen getByText Click me expect getByText Clicked toBeInTheDocument Testing library is not only for React it has implementations for all frameworks and also provides utilities for tools like Cypress Nothing much to say about it you can t start a React application in without using Testing Library Bonus Form libraryIf you do not use a component library that usually has some components to manage forms you may need something to handle your forms In the past few years we ve seen many libraries trying to provide an easy way to handle forms You may have heard of Redux Form please no Formsy or Formik I ve tried them all but the one that convinced me was React Hook Form is a very simple hook based library with easy data validation According to their benchmark it is much faster than other alternatives By using hooks React Hook Form feels very natural it also uses refs i e uncontrolled inputs to get value from your fields so it s basically standard javascript Formik is another great alternative but feels more complicated to me import React from react import useForm from react hook form export default function App const register handleSubmit watch formState errors useForm const onSubmit data gt console log data console log watch example watch input value by passing the name of it return handleSubmit will validate your inputs before invoking onSubmit lt form onSubmit handleSubmit onSubmit gt register your input into the hook by invoking the register function lt input defaultValue test register example gt include validation with required or other standard HTML validation rules lt input register exampleRequired required true gt errors will return when field validation fails errors exampleRequired amp amp lt span gt This field is required lt span gt lt input type submit gt lt form gt What about you Have you recently used new libraries or are you still using the good old ones Let me know in the comments I d love to see if I missed some great tools	2021-05-14 13:03:12
海外TECH	Engadget	Eufy's popular budget robovacs reach all-time lows in Amazon's one-day sale	https://www.engadget.com/anker-eufy-robovac-amazon-sale-131546407.html	Eufy x s popular budget robovacs reach all time lows in Amazon x s one day saleAnker s Eufy branded robovacs have dropped to all time low prices through a one day Amazon sale making them easy choices	2021-05-14 13:15:46
海外TECH	Engadget	Facebook has trained an AI to treat irrelevant data like spoiled milk	https://www.engadget.com/fb-trained-ai-to-treat-irrelevant-data-like-spoiled-milk-130038110.html	expiration	2021-05-14 13:00:38
Cisco	Cisco Blog	What Kind of Mileage Are You Getting Out of Your DOCSIS 3.1 Downstream?	https://blogs.cisco.com/sp/what-kind-of-mileage-are-you-getting-out-of-your-docsis-3-1-downstream	What Kind of Mileage Are You Getting Out of Your DOCSIS Downstream Is your DOCSIS downstream running as fast as it could Many deployments could run faster with just a few configuration changes	2021-05-14 13:53:26
海外ニュース	Japan Times latest articles	Smash-hit ‘Attack on Titan’ spoke to chaotic modern times	https://www.japantimes.co.jp/culture/2021/05/14/general/attack-titan-anime-manga-history/	Smash hit Attack on Titan spoke to chaotic modern timesAs the internationally acclaimed manga series Attack on Titan wraps up pop culture critics are commenting on its legacy both here and abroad	2021-05-14 23:33:15
ニュース	BBC News - Home	Indian variant: Second jabs could be brought forward to tackle rise	https://www.bbc.co.uk/news/uk-57109660	indian	2021-05-14 13:34:21
ニュース	BBC News - Home	Prince Harry: I want to break cycle of pain for my children	https://www.bbc.co.uk/news/uk-57110267	truman	2021-05-14 13:11:16
ニュース	BBC News - Home	DUP leadership: Party voting to elect new leader and deputy	https://www.bbc.co.uk/news/uk-northern-ireland-57100078	arlene	2021-05-14 13:09:43
ニュース	BBC News - Home	Formula 1: Turkish Grand Prix cancelled and replaced by second Austrian race	https://www.bbc.co.uk/sport/formula1/57115403	Formula Turkish Grand Prix cancelled and replaced by second Austrian raceThe Turkish Grand Prix is cancelled just six weeks after it was put on the Formula calendar and replaced by a second race in Austria	2021-05-14 13:21:38
ニュース	BBC News - Home	Amor and Ryles leave England coaching set-up	https://www.bbc.co.uk/sport/rugby-union/57113646	jason	2021-05-14 13:11:32
LifeHuck	ライフハッカー［日本版］	アウトドアに連れ出したい！ 純チタン採用ケトル＆バーナーでコーヒーを淹れてみた	https://www.lifehacker.jp/2021/05/234808-machi-ya-flow-review2.html	重さ	2021-05-14 23:00:00
LifeHuck	ライフハッカー［日本版］	iPhoneで画面録画する方法と3つの便利なアプリ	https://www.lifehacker.jp/2021/05/how-to-screen-record-on-iphone.html	iphone	2021-05-14 22:05:00
北海道	北海道新聞	自転車の梶原と橋本Ｖ、小林２位　香港のネーションズ杯	https://www.hokkaido-np.co.jp/article/544011/	香港	2021-05-14 22:11:00
北海道	北海道新聞	コロナ禍から命守る看護へ誓い　帯広の専門学校で戴帽式	https://www.hokkaido-np.co.jp/article/543899/	北海道社会事業協会	2021-05-14 22:10:00
北海道	北海道新聞	ＮＹ円、１０９円前半	https://www.hokkaido-np.co.jp/article/544010/	外国為替市場	2021-05-14 22:02:00