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Hot questions
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javascript - How to align buttons in cards vertically in center in React using Material-UI?
I have made 3 cards in ReactJS using material-ui, so the problem I am facing is that the first card's paragraph ... in the center while keeping the size of the paragraph the same?...
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java - im trying to build my app but i getting this error: AAPT2 process unexpectedly exit. Error output
im trying to build my app on android studio but im getting this error "AAPT2 process unexpectedly exit. Error output ... 'androidx.test.espresso:espresso-core:3.3.0' }...
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在同一个局域网内,怎么访问到一个IP变化的主机的资源
如题,校园网里面,主机A的IP地址是不断变化的,有没有什么方式,在主机A上暴露一个固定的IP,其他局域网机器可以通过这个固定的IP访问到A的资源呢...
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How to QUICKLY download Tar file, untar it and upload the content to Azure Block storage using Python?
I have the following Python code that runs in Jupyter Notebook. It downloads a tar file from the source location, untars it ... there any way to optimise my code to run it faster?...
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react-native Image borderRadius 对 backgroundColor 不生效?
Image 样式: { // ... borderRadius: 20, backgroundColor: '#eee', } 渲染出来的backgroundColor会溢出borderRadius 即: 图片borderRadius 外面依旧会有 backgroundColor 的颜色 请问如何解决呢?...
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php查询远程数据库很慢怎么办?
我部署了一个typecho博客应用,我的项目和数据库不在一个服务器,每次刷新详情页要2秒左右加载完毕,我把数据库迁移到跟项目一个服务器,刷新详情页只需要200毫秒 我看了下日志,时间主要浪费在执行sql那,执行的sql大概有 ... 执行那47条sql,在本地执行脚本用时2秒左右,在数据库所在服务器执行用时167毫秒,看来是mysql的问题,跟php没关系...
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typescript 从一个对象里删除某种类型的key
可能描述不是很清楚,大概意思就是下面这样 interface IType { str1: string, str2: string num1: number, num2: number, } // type Fix = /* ... * ... >; // => { str1: string, str2: string } Fix这个type应该怎么写呢...
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mysql中 建立一个用户表,一个订单表。将用户表中的uid,uname设为主键,订单表中的uid,uname怎么同时和主表关联
mysql外键...
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请问less的单行注释 // 为啥会出现报错的问题
同一个项目在我这里通过 // 注释的话就可以正常跑起来 但是在同事那里这种注释就给报错了 本来以为是编辑器或者其他配置的问题 后来有一次拉了一个项目启动的时候发现我本地也会报这个错 然后我又运行了之前能跑起来的那个项目,还是能正 ... 编辑器插件 其他之类的配置有关系的话,那为啥后来这个项目就跑不起来了 我看到less官网上也是可以用 // 进行注释的...
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请问less的单行注释
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想搭建个带后台的个人博客系统有什么推荐的系统?
现在用的vuepress,但是每次更新都很麻烦,有没有推荐的带后台的博客系统?...
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python - PySide2 app crashes if import pynput in source code
The first important file in my app is listener.py: from PySide2.QtCore import QRunnable, QObject, Signal, Slot from pynput import ... system: Ubuntu 18.04 Python's version: 3.6.9...
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How can I create an array with struct elements in C?
I want to create an array that contains elements of a structure, each element of the struct is a boolean and when ... true; array_dummy[1] = true; array_dummy[2] = false;...
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git - Divert changes of specific files to new branch
I have 186 commits and would now like to split out changes made to two of those files into a separate ... code * c1641dcx Changed otherfile1.code * 43cd70fx Changed otherfile2.code...
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node.js - node js req.body empty return
i have very strange problem i already did some forms in same way and everythin working fine.. I will try to give u some ... when i console.log req i see theres req.body empty......
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python - Pyinstaller executable doesn't work if I move the dependency
So I created an exe file using pyinstaller and gave it an icon as well using -i my_icon.ico and the ... this so that the executable will work even without the dependency...
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Python Differential Evolution with constraints
I am trying to reproduce the Differential Evolution algorithm with python (without using any module or predefined function). ... have any code examples that could guide me? Thanks!...
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Python
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Temp sensor slows down my GUI python program (Python3, raspberry pi)
I have main program with GUI which redraws vectors. In this gui program iam fast reading some data and draw them ... " % temperature) return(temperature) except: print("error")...
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spring - How do I authorize requests to /
I want to redirect to my login page when the user navigates to just /. In my WebMvcConfig I specify a redirect from / ... 401. Is there a way to exclusively allow access to just /...
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javascript - Unable to disable fullscreen and block size of the windows in Electron JS
I'm new to Electron Js and i've tried all the snippets that i could find, but i'm still unable to disable the ... BrowserWindow.getAllWindows().length === 0) { createWindow() } })...
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423
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请问谁知道阿里云官方sdk怎么用吗?
https://github.com/alibabaclo... 这个包,啥都没说,就一个包,都不知道该怎样使用了,有用过的大佬指点一下吗?...
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228
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typescript 在type中如何过滤可选属性
例如 type A = { name: string age?: number sex?: number } type B = FilterOptional<A> // => { name: string } 把所有可选的属性过滤掉,这个FilterOptional应该怎么写...
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293
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http2支持分块输出吗?类似与http1里的Transfer-Encoding: chunked
比如:服务端先输出内容A(客服端接收到数据后展示内容A),延时1000ms输出内容B(客服端接收到数据后追加展示内容B) HTTP2里是否支持,原理是什么...
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http2支持分块输出吗?类似与http1里的Transfer-Encoding:
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218
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求问pdfjs原理?
pdfjs可以解析pdf文件转成canvas图片。 前端读取pdf转成blob,pdfjs解析blob转成canvas,里面的canvas是怎么从blob拿到页面信息的?...
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javascript - How to catch an exception from the calling file?
I have the following Javascript code main.js 'use-strict'; const assert = require('assert'); var r = require('./index.js'); ... and I don't want to put try/catch in all of them....
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python程序书写
from collections import defaultdict import re P = re.compile(r'+?(-?d*)(x^?)?(d*)') def differentiate(eq, x): derivate = defaultdict(int) ... 应该是怎样一个思路,怎么确定各参数书写的位置和and和or的选择 谢谢...
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python列表去重
原始列表: [[2,2,3],[2,3,2],[3,2,2],[7]] 去重后的列表: [[2,2,3],[7]] 列表里的元素不分顺序,只是把重复的列表去掉,只保留一个 该如何做啊...
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orange怎么做鉴权
orange 网关上面的功能可以 全局统计 自定义监控 URL重定向 URI重写 访问限速 基于属性的访问控制 Basic Auth鉴权 Key Auth鉴权 Signature Auth鉴权 WAF防火墙 分流、AB测试 但是文档里很多都没有写 三种鉴权还有分流具体该 怎么传参数?...
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javascript - Showing error during using overwritepermission
I was expecting to give everyone 10 sec to type and then remove the permission but the script is not working. if (message. ... the Node.js process with a non-zero exit code.```...
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