npm install itheima-hhm-tool
const itheima = require('../itheima-hhm-tool/index.js')
//格式化时间
const dtstr= itheima.dateFormat(new Date())
console.log(dtstr);//转义html
const htmlStr = '<h1 title="abc">我是测试<span>123 </span></h1>'
const str = itheima.htmlEscape(htmlStr)
console.log(str);//还原html的方法
const str2 = itheima.htmlUnEscape(htmlStr)
console.log(str2);ISC