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先上配置代码 rules: [ { test: /.less$/, use: [ 'style-loader', { loader: 'css-loader', options: { importLoaders: 1 } }, 'less- ... 有同学告诉我为什么mac下不需要写loader就可以: import css form 'some.less'...

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

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102 views

1 answer

怎么成为一名架构师？

网站架构这块，有没有比较系统的资料。比如我要从0开始做一个电商系统，会出现哪些问题？我要怎么去演化架构。有没有这样的资料。...

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

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376 views

1 answer

python - Saving a model in Tensorflow V2 and loading it in V1

I have a model I built and trained in Tensorflow 2.3.0: model.summary() Model: "functional_52" ... Will be grateful for any advice - thanks in advance....

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

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435 views

1 answer

这样写样式浏览器会选取 DOM 元素两次吗？

.dom0, .dom1 { text-align: center; } .dom0 { color: red; font-size: 12px; } .dom1 { color: blue; font-size: 14px; ... } .dom1 { color: blue; font-size: 14px; text-align: center; }...

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

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141 views

1 answer

javascript - Achor tag disable and enable once it's get refreshed

I have to disable the acnhor tag after the ajax call is success. I tried how to disable anchor tag's in jquery? https ... anchor which is displayed in the table. How should I do it...

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

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239 views

1 answer

php - how to solve fatal error : Uncaught Error?

I did REST API MONGODB-PHP CRUD via postman and got an uncaught error. I use XAMPP 3.2.2 PHP 7.2.1 are there any ... >C:xampphtdocsmongodb.php</b> on line <b>13</b><br />...

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

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489 views

1 answer

firebase - Android Firestore unit tests produce Looper error

I'm trying to unit test some Firestore functionality like so: @Test public void ratingTest() throws InterruptedException { ... a difference and I can't find any other solutions....

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

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317 views

1 answer

请问图片在本地时url地址怎么写？

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

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516 views

1 answer

数组先升序后降序的查找c语言算法

一个数组，先生序到i，再降序 i表示数组中max的标记想请教下那种查找再这种情况下那个更快？我用的二分法，大家帮忙看看 int BinarySearch(int a[], int low, int ... a[mid+1]){ return BinarySearch(a,low,mid-1); }else{ return a[mid]; } }...

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

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411 views

1 answer

redux更新了却没有重新渲染?

//reducer const initState={ style:{left:0} } const Tabs=(state=initState,action)=>{ switch (action.type){ case 'recommend': Object. ... ={style}><span></span></div> </div> ) } }...

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

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148 views

1 answer

angular如何动态解析html和js混写的json数据

我有后台返回的代码是这样子的 <h1>hello word</h1> <script> alert('hello word!'); </script> 我在前台如何用angularjs去解析到相应的界面呢？...

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

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229 views

1 answer

base64存储Mysql数据

1.目前使用到签字画板，用的第三方js，将签名的字转换成图片，保存成了base64格式，然后添加到了图片的属性中。想咨询这种情况，我submit到后端PHP，存储到mysql中，mysql设置什么类型？还是转成图片用路径的模式存储。如果存储成base64，后期前台怎么显示数据库中的base64数据。...

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

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1.2k views

1 answer

ssl - puppet agent request error: SSL_connect SYSCALL returned=5 errno=0 state=SSLv3/TLS write client hello

I've created a fresh puppetserver(6.19) on gcp (google cloud compute) VM, but somehow I can't connect agent (6. ... closed Please help - searching the web didn't help Thanks, Harel...

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

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195 views

1 answer

sql - HiveQL query for data marked as table column names

I work in HDP 2.6.5 platformon using Hive (1.2.1000.2.6.5.0-292) on a simple database based on data from: https:// ... = r.movie_id) INNER JOIN users u ON (u.user_id = r.user_id);...

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

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203 views

1 answer

javascript - Why does css grid not work in my react project? I'm using it like I always have. Even in the same project

I don't get it. I can't get the grid layout to work in the context below. Anywhere else it works that way. Do you ... border-color: var(--color-space-cadet); border-width: 1px; }...

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

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600 views

1 answer

使用scale解决移动端1px边框遇到父div overflow:scroll在安卓机上面部分线消失怎么办？

网上搜了很多移动端1px边框怎么办，大部分大面都实现了但是有个页面，要做那种一屏展示超出后有滚动条的效果当我的右边列表很长长到超过屏幕出现滚动条时这种用scale缩放实现1px的线图片描述在移动端的安卓手机的非 ... 上面设置了overflow:auto(就是出现滚动条的时候才会有这个问题) 但是不知道为什么会冲突，而且现在无法解决，求帮助...

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

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217 views

1 answer

python - Pandas apply function to column taking the value of previous column

I have to create a timeseries using column values for computing the Recency of a customer. The formula I have to ... to make that function use the value from the previous column....

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

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343 views

1 answer

docker - Orderer container fails to run Hyperledger Fabric 2.0

I am trying to make my own network on top of the "test-network" provided in fabric-samples. Although the ... 12:39:03.788 UTC [orderer.common.cluster.replication] HeightsByEnd...

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

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336 views

1 answer

如何把node更新到最新的稳定版本

本地环境Ubuntu16.04 当前node版本4.2.6 官方的最新node版本是6.10.0 在终端如何更新为最新稳定版...

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

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258 views

1 answer

sql - Converting sub query

How can I convert this subquery to join query or something more simple like with? SELECT * FROM ViewBuy99 WHERE Id NOT ... FROM ViewBuy99 WHERE Id NOT IN ( SELECT Id FROM Buy99 )...

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

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384 views

1 answer

如何在浏览器上启动本地的应用程序？

如题↑ 场景：在浏览器上打开一个page页面，然后点击page上的一个button，就可以启动一个本地的应用程序。业界比较流行的实现方式有哪些呢？...

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

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506 views

1 answer

webpack 怎么根据不同的生产或开发环境来使用不同的文件

webpack 怎么实现像 react native 那样的，根据不同的情况调用 index.ios.js 或 index.android.js。我想根据 NODE_ENV 来打包 component.prod.js 或者 component.dev.js...

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

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455 views

1 answer

vue2.0子组件给父组件传值不起作用

做了一个下拉树插件下拉框（父组件）引用树状插件（子组件），然后点击选中子组件中，将值传送给父组件父组件html： <ul> <Item @chooseTreeItem="chooseT" ></Item> </ul> 父组件js： methods:{ ... 父组件却没接收，不知道为什么，已经反反复复检查过好几遍了，不知道vue2.0还有什么潜藏的坑？...

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

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298 views

1 answer

string - How to replace a specific character in an array with two characters

So I just came back from a job interview and one of the questions I had to face with was : "Given an array of ... thinking about this problem, Can anyone help me to solve this ?...

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

0 votes

366 views

1 answer

关于django model relation set的设置问题

如下的Django模型 class Pub(Model): name = CharField(max_length=100) class Book(Model): name = CharField(max_length=100) pub = ... set(new_books, bulk=False, clear=True) 有什么更好的写法吗？...

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

0 votes

302 views

1 answer

scrapy怎么实现重复或者定时采集

重复采集怎么实现，例如每隔 20分钟定时采集怎么实现例如每天的6点采集...

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

0 votes

335 views

1 answer

python - combine rows in pandas after explode

I have collected the data from twitter. I have miltiple columns but have an issue with one of them: tweets_data[' ... the usernames or any alternative method o do what I want?...

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

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345 views

1 answer

JS滚动的一个问题。求助。急！

先附上地址：http://rrd.me/b742N 我的这个是用Vue 写的，非常简单就是ul 里面如果准备没数据了，就添加一条数据让他继续滚动出现的问题：打开的时候，然后你去浏览其他网页，过20多秒回来看这个就会发现直接滚动到上 ... 看是不会有问题的滚动都是正常的求大神在我原有的代码修改跪求了我都不知道什么原因感激不尽！...

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

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