function GetRequest() {
  let url = location.href; //获取url中"?"符后的字串
  let theRequest = {};
  if (url.indexOf('?') != -1) {
    let str = url.substr(url.indexOf('/?') + 2);
    let strs = str.split('&');
    for(let i = 0; i < strs.length; i ++) {
      theRequest[strs[i].split('=')[0]]=unescape(strs[i].split('=')[1]);
    }
  }
  return theRequest;
}
let request = GetRequest();
console.log(request['i_code'])