OStack Q&A-Knowledge Sharing Community

0 votes

456 views

1 answer

css代码的作用于是全局的。一般为了让css不污染全局（尤其在单页应用中），都会从className下手，让它只对某个某块有效，这就产生了“css的局部作用域”。问题：公司项目用的less写样式，项目是基于react的单页应用，我想让less的作用域只针对某个react组件，不会对其他组件产生影响，我该怎么做？...

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

0 votes

182 views

1 answer

canvas能不能转换音频文件

看了一篇关于文件转码的文章，提到了filereader和canvas两种方法，其中filereader方法需要接受一个filelist对象，而html生成filelist的方法只能通过input file的方式，但这种方式需要用户选取文件无法直接处理 ... 章，都是介绍canvas转图片文件的，没有发现用canvas转换音频文件的，哪位大神帮帮忙，多谢！...

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

0 votes

525 views

0 answers

unity3d - Unity 2020.2.1f1 markerless AR plugins

I'm trying to create an application with AR, using surface detection plugins that work with all devices no matter of ARcore ... unity, how to force it to work like web 8th wall?...

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

0 votes

424 views

1 answer

javascript - According to Regex, the number value I caught with Keyup event when sending is not written properly to inside to input

I write numeric value in input, and Regex catch up value and replace according to my regex. But it does not work correctly. I use the ... ^)/g, ',')); <input type="text" id="num">...

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

0 votes

361 views

1 answer

angular ui router如何将查询参数设置为数组，即使该参数只有一个成员

angular ui router如何将查询参数设置为数组，即使该参数只有一个成员？ /list?assigned_domain&assigned_plan 如果界面 ... 呈现的是?assinged_domain=1&assinged_domain=2 而不是?assinged_domain%5B%5D=1&assinged_domain%5B%5D=2...

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

0 votes

149 views

1 answer

请问vuex在组件的模板内怎么调用？

用的是vue2 在项目的main.js里面： const store = new Vuex.Store({ state: { isCur:0 }, }) new Vue({ el: '#app', template: '<App/>' ... "></router-link> 这里的 this.$store.state.isCur 访问不到，请问是什么原因？...

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

0 votes

394 views

1 answer

python - Freshly downloaded images get error message: couldn't recognize data in image file. But old images work?

I want to use images in my GUI made with tkinter and python. My problem is that images that i downloaded from ... =Label(win, image=photo) photolabel.pack() win.mainloop()...

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

0 votes

700 views

1 answer

Can't find named elements with react-native-testing-library

I'm trying to get an element by its placeholder text but react-native-testing-library keeps throwing me the same errors: expect( ... shouldn't. I'm not sure what I'm doing wrong....

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

0 votes

315 views

1 answer

python - Python3 urllib import is failing

So after trying much to do this on my own and failing due to a syntax error, I tried directly copying a code that ... Is there something wrong with my computer or is it just me?...

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

0 votes

195 views

1 answer

java - Google maps flicker/blink black on toggling content visibility

I have implemented my map fragment with map as <fragment> in two places: (main) <DrawerLayout> --> <FrameLayout ... " android:orientation="vertical"> <com.google.android.material.t...