获取地址后将数据转换为对象

     let obj=turnUrl(url);
        console.log(obj);
        function turnUrl(url){
            let num = url.indexOf("?");
            url = url.substring(num+1);
            let arr = url.split("&");
            let obj={};
            for(let i=0;i<arr.length;i++){
            let newArr=arr[i].split("=");
            obj[newArr[0]]=newArr[1];
         }
            return obj;
        }