export function getQueryString(name) { let reg = new RegExp(`(^|&)${name}=([^&]*)(&|$)`, ‘i‘); let r = window.location.search.substr(1).match(reg); if (r != null) { return unescape(r[2]); } return null; }
原文：https://www.cnblogs.com/qihang0/p/14336316.html