Recent questions in Technique[技术]

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app内置浏览器打开h5页面，显示空白，其他浏览器打开正常显示。

app内置浏览器打开h5页面，显示空白，其他浏览器打开正常显示。这是什么问题引起的呢...

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

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python - How to write a json file inside of a for loop?

How I can store the result of a for loop? How to creat a json file inside of a loop? In this loop in each iterate I am ... ,a2). now I want to store all these value in a json file....

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

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334 views

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SQL Server - Concatenate all child parent relationships into a single string

The problem: I have a table that has family trees that has parents and child elements. What I need to return is the ... 3 Grandparent1 null 4 Child2 5 5 parent2 null 6 Child3 null...

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

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swift4 ，如何获取UIImage 图片的大小？

swift 获取UIimage 图片大小 **let** data: Data = UIImageJPEGRepresentation(image!,0.5)! **let** imageSize: Float = Float(data.count/1024) print("图片原 ... ) kb") 这个方法好像有问题输入 1 输入 0.5 都不准...

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

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javascript - how to put hello component under navbar? particles taking whole screen

I dont know why particles is taking the whole screen, I cant put that hello text right under the navbar. Here's code for this ... ,0.8981967787114846) 0%, rgba(0,16,92,1) 100%); }...

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

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jQuery源码匹配标签正则什么意思

哪个网站可以看html大全或者说html标准，也就是说制定标签必须是什么符号，我的印象是html只有字母，比如<div>, rquickExpr = /^(?:s*(<[wW]+>)[^>]*|#([w-]+))$/, 但是jQuery源码这里却wW.[wW]是什么意思呢.这句正则还是看不懂...

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

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java - Multithread loop which comparing two Strings

I have exercise to learn multithread. I have one correct password like: xxYYmmDD xx is a initials from my "Employees" ... catch (InterruptedException x) { System.out.println(x); }...

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

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javascript - how to put hello component under navbar? particles taking whole screen

I dont know why particles is taking the whole screen, I cant put that hello text right under the navbar. Here's code for this ... ,0.8981967787114846) 0%, rgba(0,16,92,1) 100%); }...

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

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258 views

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Running gnuplot on java

I′m running a java project using gnuplot to generate charts in pdf but I want to save those files in another folder outside my ... System.out.print(line + " "); } proc.waitFor();...

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

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node.js - How do I include my source code in Nix Docker Tools image?

I'm building a web server using NodeJS, and I'm using the Docker Tools that Nix provides to build images for my ... my source code into the image before running npm run build?...

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

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python爬虫爬取网页的内容和网页源码不同？

可以看到这里id为k_total的元素值不同，爬出来是1，网页源码是55 附还未完成的代码： import requests from bs4 import BeautifulSoup import re head={ 'User-Agent':'Mozilla/5.0 ( ... 题，这个网站的图片格式似乎被加密过，单爬取打不开，还请大佬们点拨如何解密 ...

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

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uilabel - How can I download and install fonts from Urls in swift?

How can I download and install fonts from Url and repeated font not download again but set on the label in swift?...

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

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如果在.vue页面上或者在router.beforeEach()上调用代理地址

在vue.config.js里面定义了一个代理地址，然后我是想着点击跳转路由的时候把定义好的代理地址加上我要跳转的地址（/demo/index==>http://127.0.0.1:8086/index）,但是不知道怎么去拿到代理的地址实现跳转...

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

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set-cookie为什么不起作用？

发了两个请求第一个是这样的： `GET /getCSRFToken HTTP/1.1 Host: localhost:7001 Connection: keep-alive Pragma: no-cache Cache-Control: no-cache Accept: ... 头但是只有第二次生效了第一次没有设置cookie 为什么如何解决？...

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

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552 views

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wordpress - Gravity form Save and Continue saved data not showing radio button selected

I have created a form using Gravity Form. The save and continue functionality is not workinng with the radio button. When ... by gravity form or any patch is available for that....

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

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关于微信授权登录与自己平台绑定账号的问题

公司要求走的商城项目，在微信浏览器下执行的登录逻辑默认绑定微信，退出时自动解绑。看了几个大厂商城的登录操作，发现也是在微信浏览器下登录默认都是自动绑定你登录的账号，没有普通登录的通道，退出时也会自动解绑该微信，这么做的目的是不是与微信支付的使用有联系，所以需要这么做吗？...

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

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string.replace 截取字符串得不到预期的结果？

使用的时同一个方法截取的结果预期不同 "moduleType_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^(1*)_/,'') "functionModuleList_7556304c7b9f9b325c6e309c1c84d5a2".replace(/^ ... a b 得到预期结果加s 就得不到预期 s ?...

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

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shell - How to select option when click “Enter” button?

I have this code, im clicking "y" button to Skip, i want change it to Enter button. Codes: echo -e "(corona) > Press "Y" to ... == "y" ]; then echo -e "(corona) > Exiting... c"...

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

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Need a code to open Google Doc's Comment History

I am new to Google-App script. Google sheets has the facility to record a macro.. but this is not so with google doc ... (Google Chrome) Find function. Can someone help me out!???...

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

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463 views

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golang多线程数据回收

最近正在使用golang的协程进行并发测试，现在遇到的问题就是向多线程分发数据很方便，但是从多线程回收数据就有点麻烦了，我是比较中意slice的，但是slice并非线程安全，虽然可以考虑自己加锁，但是感觉有点繁琐。如果用chan的话，回收的数据是不定长的，如果设个大数那面浪费空间，设个小数就的考虑再加一步处理chan的操作，感觉不大优雅，有没有比较优雅的方案...

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

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641 views

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templates - Angular routing and child routes

I am doing an angular project with angular-material and would like to organize my routing properly, here is the ... material and icons but something a bit more advanced. Thanks...

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

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python - What is the pythonic way of running an asyncio event loop forever?

From the docs it seems the recommended way to kickstart a asyncio application is to use asyncio.run(), so my ... , one way of sleeping forever on the asyncio event loop?...

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

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max-height上使用calc

<div id="root"></div> <style> #root{ height: 100px; max-height: calc(100vh-80px); width: 100px; background: lightblue; } </style> 为什么max-height无效？...

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

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728 views

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How to replace text in the multiple svg files using python

I need to alter the text in the multiple svg files please help me out from this. for filename in os.listdir(dirname): filename ... (/files/file.svg "wt") f.write(data) f.close()...

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

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791 views

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phpdoc - Specifying return value in annotation in PHP

Let's say I expect my function to return either null or the array. Is this ok if I add array possible values? /** * @return ... * orientation?: string, * url?: string, * } * } */...

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

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655 views

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html - Bootstrap Navbar: navbar-toggler-icon styling

Does anyone know, which styles (via style tag) can be applied to a button typed navbar-toggler-icon? I want my ... wouldn't be applied. I used the Bootstrap 5 collapsed navbar....

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

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r - How to add a suffix onto column names based on existing column name?

At the moment, the code below is not very reproducible as I am adding the suffix based on column numbers. How would I modify this code ... paste(colnames(df)[5:10], "C", sep = "_")...

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

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为什么在mounted函数中有时候无法获取到root元素？

<template> <div class="container"></div> </template> export default { mounted () { const container = document.querySelector('.container') ... 个问题 ??我尝试过使用nextTick，还是一样获取不到root元素 ...

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

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