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源代码 let name = 'hi!, world' name.toLowerCase().replace('hi!', 'hello').trim() vue prettier格式化后 let name = 'hi!, world' name . ... 'hello') .trim() 如何让链式调用不换行，或者超出多少长度换行 ...

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

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python - Opening image file from URL for text recognition with pytesseract

I'm really new to Python (really, really new). This is the problem i need help to solve: I have a list of images ... extracted text from image inside a .csv Thank you very much :)...

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

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swiper自定义进度条消失时怎么立即除去它的过渡动画

我看了，这位老哥的解决办法，自己写了一个，每次0~100 4秒是没问题，但是我每次除去class，它会100~0也走四秒，除去class能否立刻去除呢，谢谢各位 / ... -transition-property:width; -webkit-transition-duration:4s; } .progress-100{ width: 100%; } }...

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

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如何在priorityqueue array里面加一组一组的array

如何在priorityqueue array里面加一组一组的array...

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

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861 views

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直接复制aspx页面出现各种错误？

比如有一个abc.aspx（包含.cs及designer.cs），我直接复制了这个文件，并粘贴在同目录下，然后重命名为abc1.aspx，并修改了aspx页面中的CodeBehind，Inherits和cs文件中的class名按理说不会出现问题，但实际开发过程中 ... 最终把文件删除，重新建文件，直接复制代码才解决感觉很是奇怪所以请教一下大家 ...

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

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页面所有中文转换成其他语言

如上功能图，选择不同语种，将页面所有中文翻译转换。各位道友，有什么好的建议嘛！！！...

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

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帮我理解这个正则表达式，实在搞不懂

下面是千分位格式化的正则表达式，传入1234567890，返回 1,234,567,890 不知道如何理解，请逐个字符解释给我这个小白听 function regFormatPermil(v){ const reg = /d{1,3}(?=(d{3})+$)/g return `${v}`.replace(reg,'$&,') }...

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

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2.3k views

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brew install nginx特别慢

试了切换镜像还是特别慢，有其他的安装方法吗...

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

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2.6k views

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r - Quickly filter down a grid of sf points according to a polygon

I want to make grids (in the sense of data frames of x- and y-coordinates) over the US, or regions of the US, throwing out any points in ... "x", "y")])))), us)),])) print(nrow(g))...

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

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2.7k views

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reactjs - Fetch data inside useEffect hook before rendering - React

I'm building a prototype that fetches a Spotify user's playlist data in React. The data fetching is done inside a useEffect hook ... </button> )} </div> ); } export default App;...

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

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c# - WinForms application DPI-awareness only working at 125% scale

I'm making a DPI-aware WinForms application in .NET Framework 4.8 using VS 2019. My monitor's scale is set to 125%. I ... 125% and it will look bad again. What is the issue here?...

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

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2.6k views

1 answer

声望变成负数了怎么办？

好像是提问被别人恶搞了，我现在回答问题都回答不了了...

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

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3.0k views

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excel - Assign cell color function

trying to create a function that colour a cells interior (using RGB) according to user input and coded below, can't understand ... .Color = RGB(r, g, b) End With End Function...

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

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3.3k views

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请问React Ant design pro中使用upload组件如何限制只能上传一个文件？

我用的是Beforeupload的方法，如果直接返回true或者false，文件上传不受影响，在网上找了解决方法，说是使用promise方法，但是这样点击文件上传后总是出现白屏，请问该如何解决呢？ const[ ... } else{ message.warn('仅支持上传一个文件！') return reject(false); } }) }...

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

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vue在执行到axios时浏览器报username未定义

<template> <div class="hello"> <h1>Welcome to {{ msg }}</h1> <form > username:<input type="text" name="username" v- ... , mounted(){ this.submit(this.$route.params.u) } } </script>...

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

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4.1k views

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vue.js - Vuetify v-data-table custom header class styling not being applied

I'm trying to customize the class belonging to the headers of a v-data-table in Vuetify but the class styling is not being ... the page etc. in case it was a hot reload issue....

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.1k views

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请问开发工程师！在OMV下安装，首页正常，其他页面去打不开。

是这样子的我的系统是OMV，基于debian，我建好了数据库，用的是MYSQL和nginx，安装一切正常，但是打开后，除了首页，其他页面都是404。网上有人说要设置静态nginx，这个怎么弄！！### 问题描述问题出现的环境背景及自己尝试过哪些方法相关代码粘贴代码文本（请勿用截图）你期待的结果是什么？实际看到的错误信息又是什么？...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.2k views

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react中监听redux内容中值改变

小白求解，在使用react和redux中遇到一个问题，比如有两个同级组件Top和Bottom，Top可以录入一些搜索，然后点击搜索按钮，录入的数据存入store中，如果这个时候想要Bottom开始根据录入的内容查询应该怎么做，我目前用是在 ... 是这样的话，如果在Bottom中修改了store也会触发这个监听，大概是下图这样，求各位大佬指点！！！ ????...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.7k views

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flutter路由列表获取

a页面=>b页面=>c页面=>d页面，如何获取路由列表[a,b,c,d], 运营在d页面后台配了个链接跳转到b，我需要判断b是否在上级路由列表中，应该如何操作。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.2k views

1 answer

IE 浏览器下 match 方法报错

遇到一个字符串使用 match 正则比配的问题。 ` let reg = /(?<={{2}).*?(?=}{2})/g; let res = '{{abc}}'.match(reg); ` chrome 浏览器运行正常，IE 浏览器会报 Unexpected quantifier 看网上解释说是最好避免在字符串方法中使用预匹配正则。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.4k views

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git tag --sort=taggerdate 和gitlab中显示的不一样

想获取最新的tag，但是发现gitlab中tag排序和命令行中获取的结果不一样，这是为什么呢: 在gitlab创建几个测试的tag：在命令行中获取tag： [root@xxx2 dev_client-protocol]# git fetch remote: ... 0.0.2 命令行中获取的顺序是不对的，明显和创建tag时间不符，这是为什么呀...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

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js正则的问题

正则 let str = `\loves{小猫}{鱼} \loves2{小猫1}{鱼2} `; let reg2 = new RegExp(`(\\([\s\S]*?))(\{)([\s\S]*?)(\})(\{)([\s\S^\{\}]*?)(\} ... 括号里面不要再有 { 或者 } 符号应该怎么写正则呢（这个排版我反复编辑了四五次，实在调不好）...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

1 answer

修改el-timeline-item的左侧第一个节点颜色，修改后无效

修改遍历生成的第一个子节点的左侧圆点颜色，修改后无法生效生效 <el-timeline> <el-timeline-item v-for="(activity, index) in activities" :key="index" :timestamp=" ... #95F204; }无法生效如何可以使只有第一个节点的圆点颜色改变，其他颜色不变？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

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How to iterate this SQL query to go through specific date range?

I am needing to extract three months at a time of one year for years 2016-2020. For example I need Jan- ... time. DECLARE @StartDateKey int = 20160101, @EndDateKey int = 20160331;...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.5k views

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git - How do I prevent files from being sent to the staging area?

I am working on a project that relates several files, some of which I want to add toa git repository and some of which ... not have to type all the files one by one. Kind regards....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.5k views

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MySQL char(255) 字段类型为什么可以存 255 个汉字？

环境：版本：MySQL 8.x 编码：utf8mb4 字段定义： Field Type Null Key Default Extra id int unsigned NO PRI NULL auto_increment team_name char(255) ... 啊"); 结果： Query OK, 1 row affected (0.01 sec)...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

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android - listen for firebase event after app killed

I was trying listen for a change in firebase firestore collection, after the app is closed. For that I have written the ... on MotoG5s plus (Oreo) and Samsung A50 (Android 10)....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.9k views

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Rails form doesn't display in the view

Similar to Rails: form doesn't show up post, I've run into a similar issue but can't figure out what I ... longer raises errors after I fixed the syntax errors it complained about....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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