Recent questions in Technique[技术]

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intellij idea - How to prevent all products of JetBrains from checking ignored files in the background and make it possible to commit

I've used several products of JetBrains. If I don't disable the git plugin in WebStorm (or IDEA), the IDE would always keep checking for ignored files. How to solve this problem?...

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

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CANVAS旋转图片，可旋转顺序为什么不对呢？

先上代码，直接可运行，不论是左旋转还是右旋转，顺序都不对请问怎么解决这一问题？最后我需要返回base64位替换img里的值 <div class="content"> <div class="box"><img src="图片地址" /><div class="rotate_img">旋转 ... , -width, 0); break; } var url = canvas.toDataURL(); img.src = url; } </script> 先谢谢啦！~...

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

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vuex把数据放在seesion之后取值报错。

store的index界面： getters的changeTab.js 报错：...

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

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python - Tensorflow predict likeliness of two sentences to go after each other

I use AWS Textract to extract text from documents, however, some sentences are ripped apart which I need to put back together using Tensorflow. I'm quite new to ... two strings to go together. What model architecture do I need to do this?...

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

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documentation - Split view using docusaurus

I'm trying to achieve something like this: example image here Is there a way to do this using docusaurus?...

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

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js如何处理反斜杠（转义符）？

项目是一个webview嵌套的H5，然后问题出现的原因是app那边给到前端的字符串是一个字符一个字符拼好然后给过来的，后端存进数据库也没有进行转义，所以现在想解决的就是如何处理其中携带的转义字符？暂时不从app和后端那边处理，只在前端有没有解决的可能性？例如：给的格式是 abcabc这种，我在前端要变成 abc\abc这种才能够正常输出 abcabc。求大佬解答一下！就是说如何找到那个反斜杠并且手动在前面加一个反斜杠来进行转义。...

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

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reactjs - useState, setting icon active and inactive

Hi all I have following code : my code I have two useStates, they checking if first one is true then they set active icon if false then inactive icon. ... It should be like something as checkbox Please help me to resolve this issue, thanks....

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

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c# - How to set PrefetchCount when using ConnectReceiveEndpoint with MassTransit?

As default, MassTransit sets the PrefetchCount to 16. I would like to change that. I can do this when configuring MassTransit. But when using ConnectReceiveEndpoint I ... , TimeSpan.FromSeconds(2))); }); }); await hostHandler.Ready; }...

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

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python - Tracemalloc Error while running HTMLrequests()

I'm writing an Discord-Bot which sends an web-hook including infos scraped from an website. The Function which scrapes the infos is the following: import json ... = await async_session.get('some url' + self._url) result_slug = result.text...

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

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奇怪的错误，mysql插入到数据库的数据读出来不对，问题在哪儿？

奇怪的错误，插入到数据库的数据读出来不对，问题在哪儿？小白一枚，请高手指教； def get_last_date(conn): ret='' try: cursor = conn.cursor() query = '''select date from lastdate limit 1;''' ... lastdate (date,temp) values(2020-09-24,0); hhh (('1987',),) 1987 <class 'str'> 1987...

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

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什么是鸭子类型，TS中什么时候使用鸭子类型呢？

如题所示，鸭子类型是什么呢？...

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

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137 views

1 answer

jquery :visible筛选

请问下jquery不能够多级筛选吗？ <ul> <li> <select></select> </li> </ul> 比如我想筛选ul下可见的select标签，但是我只控制了ul的显示隐藏用$('ul:visible select') 或者 $('ul select:visible')都取的不对只能用$('ul:visible').find('select')来获取吗？...

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

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git - Does Deleting a Branch Deletes It's Sub-branches?

I created a branch feature from branch develop, after working on the branch feature, the whole requirement changed, now I need to reset my whole work on ... without merging it to the develop branch) deletes it's sub-branch feature_backup ?...

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

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build提示文件过大

The bundle size is significantly larger than recommended. 这个怎么解决呀 The bundle size is significantly larger than recommended. Consider reducing it with code ... /load-on-demand You can also analyze the project dependencies using ANALYZE=1...

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

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macos 全盘只读的情况下，如何安装cpp编译器到U盘

全盘只读，cmd + R 启动，别问我为啥不修电脑/重买/重装 clang 是不可能的，xcode 一条的都用不成。然后装的是某个 mac 版的，配置了半天，#include_next <stdlib.h> 也修好了，到了最后一步告诉我需要 xcode-cli-tool 只好试着装 GNU 版本的，官网上说用 brew 或 port 装，但 ruby 我就装不上，port 又非得用 /opt 这个目录。源码编译也不可能，我根本没有 make 这个命令...

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

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332 views

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读取json文件，require和fs.readFile哪个性能更好？

需求：想监听一个json文件的变化，需要知道其变更前后的数据差异。思路：使用chokidar监听json文件，在add和change事件回调中通过require或fs.readFile获取到文件数据。问题：该json文件数据较大，存放的着几百万条文件的数据，每条数据约200字节。总大小1G多。不知道能否通过require读取这么大的文件，读取效率相比fs.readFile如何。...

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

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分页时用到了java8新特性，问题如下图

...

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

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python - Sum of every element in a list

So i have a list: list1 = [[1, 3, 6, 8, 9, 9, 12], [1, 2, 3, 2, 1, 0, 3, 3]] but you can also split it into two lists, if it ... , instead of every possible digits with every possible, just the first one in 1st list with 1st in second list....

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

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flutter - Waiting for getLinksSteam before continue

my problem is that my app won't wait for getLinksStream to be ready. In my case i want to login with OAuth2 and i need the responses after logging in. I'm ... Can somone help me here? (And sorry for my english. Its not my main language)...

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

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Centos7下nslookup特定域名返回server can't find *: SERVFAIL？

目前在一台CentOS7服务器上跑了一项业务，使用了腾讯云COS服务，认证的时候需要请求api-common.qcloud.com这个地址，业务里使用了curl 一开始程序正常，运行大概4个月左右后发现请求速度非常慢，平均15秒以上，检查发现curl请求的时候DNS就占用15秒然后开始排查，尝 ... WHEN: 日 10月 18 19:49:05 CST 2020 ;; MSG SIZE rcvd: 55 系统已经安装了nscd，尝试清理缓存关闭缓存均同样的效果 ...

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

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358 views

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原生js创建两层div

使用原生js创建一个 <div class="a"> <div class="b"></div> </div> 这样的元素...

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

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664 views

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url scheme唤起app后还是打开了app下载链接怎么办？

let openApp = function () { var u = navigator.userAgent; var isWeixin = u.toLowerCase().indexOf('micromessenger') !== -1; // 微信内 var isAndroid = u.indexOf(' ... location.href = "http://itunes.apple.com/app/id387682726"; } }, 2000); } }...

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

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717 views

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请问 TP3.2.3支持 mysql JSON字段的查询吗？

请问 TP3.2.3支持 mysql JSON字段的查询吗？...

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

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601 views

1 answer

Remove Unused JavaScript - babel asyncToGenerator.js - Webpack

I'm new to Webpack/Babel and trying to leverage it to improve the lighthouse performance of a front-end website that utilizes React. I ran the lighthouse ... is needed? The page does read from cloudfront and uses lazy loading. Thoughts?...

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

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756 views

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:last-child 选择器没有生效，请问怎么回事？

如图， .item1:last-child 选择器没有生效，请问怎么回事？...

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

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729 views

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Vue项目运行时提示svg-sprite-loader ExtractPluginMissingException？

我已经执行了： vue add svg-sprite npm install svgo svgo-loader --save-dev npm install svg-sprite-loader 运行时终端打印warning： Module build failed (from ./node_modules/svg-sprite-loader/lib ... -node (webpack)/hot/dev-server.js ./src/main.js 浏览器控制台报错：求教...

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

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1.2k views

1 answer

encryption - php halite file decryption "on the fly"

hello i tried to do some encryption on files with paragonie/halite (or with php open_ssl; it doesn't matter) the problem is that how can you open a file ... to do it with images which has to be available longer (show instead of download)...

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

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1.7k views

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python - ValueError: The 'image' attribute has no file associated with it. when testing a model with a NULLABLE image field

I'm testing a model called Category that looks like this: class Category(models.Model): image = models.ImageField(upload_to='images', null=True, blank=True) ... Category.objects.create(title='test_category', image=Null) But it didn't work....

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

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