window.location.search为空？

解决方案：

let index = window.location.href.lastIndexOf("?");

let datalist =window.location.href.substring(index+1,window.location.href.length);

let data =datalist.split('&') //res.data.guide为上述字符串

let obj = {};

data.map((e) => { 

    obj[e.split("=")[0]] = e.split("=")[1];

});