npm install itheima-tools-huan
const itheima = require('itheima-tools');
// 调用dateFormat对时间进行格式化
const dtStr = itheima.dateFormat(new date());
// 结果 2022-05-23 10:29:22
console.log(dtStr);
const str = '<h1 title="abc"><span>我有一头 小毛驴</span>np</h1>';
newStr = itheima.htmlEscape(str);
newStr2 = itheima.htmlUnEscape(newStr);
ISC