我正在使用非规范化的数字.
我知道:
实质上,非规范化浮点数能够表示可以用任何浮点值表示的SMALLEST(幅度)数.
我也知道数字可以这样表示:
然而,我被卡住的地方是de- /标准化数字的实际计算?
有没有办法做到这一点?有什么特别的号码吗?
非常感谢你的回答!
floating-point binary denormalization floating-accuracy ieee-754
我想上传openshift的自定义安装.我已经安装了wordpress并通过git克隆了它.现在我想手动添加一些插件并将其推回到openshift.我必须在哪里放入我提取的插件/主题?
我感谢你的回答!
我想在我的快递应用程序中使用winston。
我已经像下面这样配置了 winston:
const path = require('path')
const winston = require('winston')
module.exports = () => {
process.on('uncaughtException', err => winston.error('uncaught exception: ', err))
process.on('unhandledRejection', (reason, p) => winston.error('unhandled rejection: ', reason, p))
winston.emitErrs = true
winston.exitOnError = false
winston.level = process.env.NODE_ENV === 'production' ? 'info' : 'debug'
winston.remove(winston.transports.Console)
winston.add(winston.transports.Console, {
level: process.env.NODE_ENV === 'production' ? 'info' : 'debug',
handleExceptions: true,
prettyPrint: true,
humanReadableUnhandledException: false,
json: false,
colorize: true,
timestamp: new Date(),
})
winston.add(winston.transports.File, {
level: 'info',
filename: path.join(__dirname, …
Run Code Online (Sandbox Code Playgroud) 我在伦敦GMT时区.
如果我插入我的excel:
=IF(OR(WEEKDAY(F20)=6;WEEKDAY(F20)=7);TRUE;FALSE)
我TRUE
回来了,这显然是错误的,因为它Friday
在我的时区!
但是,这是错误的,请看:
为什么这个错误很好?
我感谢你的回答!!!
我想用作后端的play框架.但是,我只有经验primefaces && richfaces && jsf2.0
.你会选择什么作为一个好的前端框架,特别是对于快速原型设计?
我感谢你的回答!
我有以下对象数组,我想总结所有出现的情况watt
:
let allProducts = [{
"unique_id": "102",
"currency": "$",
"price": "529.99",
"watt": 150
},
{
"unique_id": "11",
"currency": "$",
"price": "323",
"watt": 150
},
{
"unique_id": "13",
"currency": "$",
"price": "23",
"watt": 77
}
]
let getWatt =
_(allProducts)
.map((objs, key) => ({
'watt': _.sumBy(objs, 'watt')
}))
.value()
console.log(getWatt)
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<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js"></script>
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如您所见,我得到了一组0
值。但是,我想取回的结果值377
。有什么建议我做错了吗?
感谢您的答复!
我正在使用"electron": "^5.0.0"
and "node-schedule": "^1.3.2"
-node -schedule。我试图在启动电子应用程序时加载我的作业队列。
我的main.js
电子看起来如下所示:
async function main() {
const {
app,
BrowserWindow
} = require('electron')
const schedule = require('node-schedule');
const {
Schedule
} = require('./schedule')
let win
let sch = new Schedule()
try {
await sch.initScheduledContent()
console.log("Imported of jobs done!");
} catch (error) {
console.log(error);
}
function createWindow() {
win = new BrowserWindow({
width: 800,
height: 600
})
win.loadFile('index.html')
win.on('closed', () => {
win = null
})
}
app.on('ready', createWindow)
app.on('window-all-closed', () …
Run Code Online (Sandbox Code Playgroud) 我正在尝试设置 github 操作来部署我的应用程序。
我bash
启动部署过程的脚本如下所示:
#!/bin/sh
set -e
vendor/bin/phpunit
(git push) || true
git checkout production
git merge master
git push origin production
git checkout master
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执行上述脚本时,我得到:
我的workflows/main.yml
文件如下所示:
name: CD
on:
push:
branches: [ production ]
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
with:
token: ${{ secrets.PUSH_TOKEN }}
# - name: Set up Node
# uses: actions/setup-node@v1
# with:
# node-version: '12.x'
# - run: npm install
# - run: npm run production
- name: Commit …
Run Code Online (Sandbox Code Playgroud) 我正在创建一个个人资料页面。
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
<meta name="generator" content="Hugo 0.80.0">
<title>Detailed View</title>
<link rel="canonical" href="">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BmbxuPwQa2lc/FVzBcNJ7UAyJxM6wuqIj61tLrc4wSX0szH/Ev+nYRRuWlolflfl" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.4.0/font/bootstrap-icons.css">
<!-- Favicons -->
<link rel="apple-touch-icon" href="https://getbootstrap.com/docs/5.0/assets/img/favicons/apple-touch-icon.png" sizes="180x180">
<link rel="icon" href="https://getbootstrap.com/docs/5.0/assets/img/favicons/favicon-32x32.png" sizes="32x32" type="image/png">
<link rel="icon" href="https://getbootstrap.com/docs/5.0/assets/img/favicons/favicon-16x16.png" sizes="16x16" type="image/png">
<link rel="manifest" href="https://getbootstrap.com/docs/5.0/assets/img/favicons/manifest.json">
<link rel="mask-icon" href="https://getbootstrap.com/docs/5.0/assets/img/favicons/safari-pinned-tab.svg" color="#7952b3">
<link rel="icon" href="https://getbootstrap.com/docs/5.0/assets/img/favicons/favicon.ico">
<meta name="theme-color" content="#7952b3">
<!-- Custom styles for this template --> …
Run Code Online (Sandbox Code Playgroud)我在用"fabpot/goutte": "^4.0",
。
我正在尝试从该网站获取数组中的日期和发布版本。
请找到我的可运行示例:
<?php
require_once '../vendor/autoload.php';
use Symfony\Component\DomCrawler\Crawler;
use Goutte\Client;
try {
$resArr = array();
$tempArr = array();
$url = "https://www.steelcitycollectibles.com/product-release-calendar";
// get page
$client = new Client();
$content = $client->request('GET', $url)->html();
$crawler = new Crawler($content, null, null);
$table = $crawler->filter('#schedule'); //->first()->closest('table');
$index = 0;
$resArr = array();
$table->filter('div')
->each(function (Crawler $tr) use (&$index, &$resArr) {
if ($tr->filter('.schedule-date')->count() > 0) {
$releaseDate = $tr->filter('.schedule-date')->text();
}
if ($tr->filter('div > div.eight.columns > a')->count() > 0) {
$releaseStr = $tr->filter('div …
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