移动端input输入时页面放大
<meta content="yes" name="apple-mobile-web-app-capable">
<meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0,maximum-scale=1.0,user-scalable=no">
微信机器人
https://github.com/padlocal/wechaty-puppet-padlocal/wiki/TOKEN-%E7%94%B3%E8%AF%B7%E6%96%B9%E6%B3%95app.tsimport { PuppetPadlocal } from "wechaty-puppet-padlocal";
import { Contact, log, Message, ScanStatus, Wechaty, Friendship } from "wechaty";
const puppet = new PuppetPadloc...
Centos 6 yum 错误
Error: All mirror URLs are not using ftp, http[s] or file. Eg. Invalid release/repo/archcd /etc/yum.repos.d/
修改 CentOS-Base.repo注释掉 mirrorlist= 开头的注释取消 baseurl 开头的注释将 baseurl 中的mirrorlist.centos.org 改为 vault.centos.org
阿里STS权限管理
打开地址 https://ram.console.aliyun.com/roles创建用户来获取 accessKeyId accessKeySecretRAM角色管理，创建RAM角色，选择阿里云给角色添加权限，可以添加无数个，最重要的是添加AliyunSTSAssumeRoleAccesslet OSS = require('ali-oss');
let STS = OSS.STS;
let sts = new STS({
accessKeyId: 'LTAI5*******e4eSf',
...
MySql拿到插入的ID
场景:插入一条数据,这条数据的ID是自增的主键.需要在插入的时候拿到这个IDnpm i mysql
conn.query(sql,(err,data)=>{
console.log(data.insertId)
})
Nginx分流
server {
listen 443 ssl;
server_name api.xxx.com;
# index index.html index.htm index.php;
# root /aweb/api;
ssl_certificate cert/api.pem;
ssl_certificate_key cert/api.key;
ssl_session_timeout 5m;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HI...
NodeJs抓取页面
npm i cheerio request iconv-lite思路：通过 request 获取到页面。在使用 iconv-lite 编译数据。在使用 cheerio 拿到对应的元素。这里以抓取微博热搜为例const cheerio = require('cheerio');
const request = require('request');
const iconv = require('iconv-lite');
function http(url, decode = 'utf8') {
return new Promise((res...
MySql3306端口笔记Can’t connect to MySQL server(60)的问题
阿里云服务器。端口全开。防火墙关闭。安全组端口全开。就是连不上。Can’t connect to MySQL server(60)的问题 sudo iptables -L可以看到一条mysql的规则。这个时候需要把他删掉sudo iptables -L -n --line-number sudo iptables -D INPUT 6
NodeJs抓取页面内容
const cheerio = require('cheerio');
const request = require('request');
let url = 'https://btc.com/'
request({ url: url, encoding: null }, function (error, response, body) {
if (!error && response.statusCode == 200) {
var buf = iconv.decode(body...
随机数
function getRandom(start, end, fixed = 0) {
let differ = end - start
let random = Math.random()
return (start + differ * random).toFixed(fixed)
}getRandom(1,5) 1<= num >=5
H5打电话发短信
<meta name="format-detection" content="telephone=yes"/>
<a href="tel:13660007710">13660007710</a>
<a href="sms:13660007710">13660007710</a>
保存图片文件，下载图片
function downloadIamge(imgsrc, name) { //下载图片地址和图片名
let image = new Image();
// 解决跨域 Canvas 污染问题
image.setAttribute("crossOrigin", "anonymous");
image.onload = function () {
let canvas = document.createElement("canvas");
...
赛邮云通信SUBMAIL
NodeJs发送短信var request = require('request');
let post = function (url, postdata) {
let options = {
url: url,
formData: postdata
};
return new Promise(function (resolve, reject) {
request.post(options, function (err, response, body) {
...
根据元素宽度设定高度比例
要求：图片根据宽度设置高度。正方形.shopimg {
width: 100%;
height: 0;
padding-bottom: 100%; // 这个就是高的比例
position: relative;
}
.shopimg-info {
position: absolute;
top:0;
left: 0;
bottom: 0;
right: 0;
}
.shopimg img {
width: 100%;
height: 100%;
}
Vue中可以选择文字高亮的插件
npm install --save vue-text-highlightimport TextHighlight from ‘vue-text-highlight’;
Vue.component(‘text-highlight’, TextHighlight);<text-highlight :queries="queries">{{ description }}</text-highlight>
data() {
return {
queries: ['birds', 'scatt'],//需要高亮的文字
...
PostMan设置请求头
先设置一个环境变量登录接口做处理使用
粘贴图片 ctrl+v
document.addEventListener("paste", function (event) {
var isChrome = false;
if (event.clipboardData || event.originalEvent) {
//某些chrome版本使用的是event.originalEvent
var clipboardData =
event.clipboardData || event.originalEvent.clipboard...
JS判断是否为IE浏览器
function IEVersion() {
var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
var isEdge = userAgent.indexOf("Edge") > -1 ...
IE浏览器语法兼容
https://babeljs.io/en/repl.html